82455663690 has 64 divisors (see below), whose sum is σ = 220314124800. Its totient is φ = 21944941632.

The previous prime is 82455663599. The next prime is 82455663701. The reversal of 82455663690 is 9636655428.

82455663690 is a `hidden beast` number, since 8 + 2 + 45 + 566 + 36 + 9 + 0 = 666.

It is a super-2 number, since 2×82455663690² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162562 + ... + 437421.

It is an arithmetic number, because the mean of its divisors is an integer number (3442408200).

Almost surely, 2^82455663690 is an apocalyptic number.

82455663690 is an abundant number, since it is smaller than the sum of its proper divisors (137858461110).

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

82455663690 is a wasteful number, since it uses less digits than its factorization.

82455663690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600508 (or 600502 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 82455663690 in words is "eighty-two billion, four hundred fifty-five million, six hundred sixty-three thousand, six hundred ninety".