75971646656 has 56 divisors (see below), whose sum is σ = 158754409440. Its totient is φ = 36000847872.

The previous prime is 75971646617. The next prime is 75971646659. The reversal of 75971646656 is 65664617957.

It is not an unprimeable number, because it can be changed into a prime (75971646659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76301 + ... + 397196.

Almost surely, 2^75971646656 is an apocalyptic number.

It is an amenable number.

75971646656 is an abundant number, since it is smaller than the sum of its proper divisors (82782762784).

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

75971646656 is a wasteful number, since it uses less digits than its factorization.

75971646656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473641 (or 473631 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 62.

The spelling of 75971646656 in words is "seventy-five billion, nine hundred seventy-one million, six hundred forty-six thousand, six hundred fifty-six".