75316561656 has 64 divisors (see below), whose sum is σ = 215427866880. Its totient is φ = 21495248640.

The previous prime is 75316561637. The next prime is 75316561699. The reversal of 75316561656 is 65616561357.

It is a junction number, because it is equal to n+sod(n) for n = 75316561599 and 75316561608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94765 + ... + 399516.

It is an arithmetic number, because the mean of its divisors is an integer number (3366060420).

Almost surely, 2^75316561656 is an apocalyptic number.

It is an amenable number.

75316561656 is an abundant number, since it is smaller than the sum of its proper divisors (140111305224).

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

75316561656 is a wasteful number, since it uses less digits than its factorization.

75316561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495204 (or 495200 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 51.

The spelling of 75316561656 in words is "seventy-five billion, three hundred sixteen million, five hundred sixty-one thousand, six hundred fifty-six".