82881600656 has 10 divisors (see below), whose sum is σ = 160583101302. Its totient is φ = 41440800320.

The previous prime is 82881600653. The next prime is 82881600661. The reversal of 82881600656 is 65600618828.

It can be written as a sum of positive squares in only one way, i.e., 67816493056 + 15065107600 = 260416^2 + 122740^2 .

It is not an unprimeable number, because it can be changed into a prime (82881600653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590050005 + ... + 2590050036.

Almost surely, 2^82881600656 is an apocalyptic number.

It is an amenable number.

82881600656 is a deficient number, since it is larger than the sum of its proper divisors (77701500646).

82881600656 is a wasteful number, since it uses less digits than its factorization.

82881600656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180100049 (or 5180100043 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 82881600656 in words is "eighty-two billion, eight hundred eighty-one million, six hundred thousand, six hundred fifty-six".