2169770497056 has 144 divisors (see below), whose sum is σ = 6192573738624. Its totient is φ = 720646198272.

The previous prime is 2169770497051. The next prime is 2169770497057. The reversal of 2169770497056 is 6507940779612.

2169770497056 is a `hidden beast` number, since 2 + 1 + 6 + 97 + 7 + 0 + 497 + 0 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 2169770496984 and 2169770497002.

It is not an unprimeable number, because it can be changed into a prime (2169770497051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361204005 + ... + 361210011.

It is an arithmetic number, because the mean of its divisors is an integer number (43003984296).

Almost surely, 2^{2169770497056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2169770497056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3096286869312).

2169770497056 is an abundant number, since it is smaller than the sum of its proper divisors (4022803241568).

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

2169770497056 is a wasteful number, since it uses less digits than its factorization.

2169770497056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343 (or 10332 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 2169770497056 in words is "two trillion, one hundred sixty-nine billion, seven hundred seventy million, four hundred ninety-seven thousand, fifty-six".