82102345656 has 64 divisors (see below), whose sum is σ = 207389445120. Its totient is φ = 27083333760.

The previous prime is 82102345639. The next prime is 82102345681. The reversal of 82102345656 is 65654320128.

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, 3902686 + ... + 3923666.

It is an arithmetic number, because the mean of its divisors is an integer number (3240460080).

Almost surely, 2^82102345656 is an apocalyptic number.

It is an amenable number.

82102345656 is an abundant number, since it is smaller than the sum of its proper divisors (125287099464).

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

82102345656 is a wasteful number, since it uses less digits than its factorization.

82102345656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22676 (or 22672 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 82102345656 in words is "eighty-two billion, one hundred two million, three hundred forty-five thousand, six hundred fifty-six".