6499227769056 has 288 divisors, whose sum is σ = 21233362550400. Its totient is φ = 1864944829440.

The previous prime is 6499227769051. The next prime is 6499227769063. The reversal of 6499227769056 is 6509677229946.

6499227769056 is a `hidden beast` number, since 6 + 499 + 2 + 2 + 77 + 69 + 0 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×6499227769056² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499227769051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136431450 + ... + 136479078.

It is an arithmetic number, because the mean of its divisors is an integer number (73726953300).

Almost surely, 2^{6499227769056} is an apocalyptic number.

6499227769056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6499227769056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10616681275200).

6499227769056 is an abundant number, since it is smaller than the sum of its proper divisors (14734134781344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6499227769056 is a wasteful number, since it uses less digits than its factorization.

6499227769056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49942 (or 49931 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 72.

The spelling of 6499227769056 in words is "six trillion, four hundred ninety-nine billion, two hundred twenty-seven million, seven hundred sixty-nine thousand, fifty-six".