659449470944 has 384 divisors, whose sum is σ = 1560242331648. Its totient is φ = 271313602560.

The previous prime is 659449470877. The next prime is 659449471007. The reversal of 659449470944 is 449074944956.

It is a super-2 number, since 2×659449470944² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1900430579 + ... + 1900430925.

It is an arithmetic number, because the mean of its divisors is an integer number (4063131072).

Almost surely, 2^659449470944 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 659449470944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780121165824).

659449470944 is an abundant number, since it is smaller than the sum of its proper divisors (900792860704).

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

659449470944 is a wasteful number, since it uses less digits than its factorization.

659449470944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 65.

The spelling of 659449470944 in words is "six hundred fifty-nine billion, four hundred forty-nine million, four hundred seventy thousand, nine hundred forty-four".