82662800064657 has 4 divisors (see below), whose sum is σ = 110217066752880. Its totient is φ = 55108533376436.

The previous prime is 82662800064623. The next prime is 82662800064673. The reversal of 82662800064657 is 75646000826628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82662800064657 - 2⁷ = 82662800064529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82662800064657.

It is not an unprimeable number, because it can be changed into a prime (82662800064617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13777133344107 + ... + 13777133344112.

It is an arithmetic number, because the mean of its divisors is an integer number (27554266688220).

Almost surely, 2^{82662800064657} is an apocalyptic number.

It is an amenable number.

82662800064657 is a deficient number, since it is larger than the sum of its proper divisors (27554266688223).

82662800064657 is a wasteful number, since it uses less digits than its factorization.

82662800064657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27554266688222.

The product of its (nonzero) digits is 46448640, while the sum is 60.

The spelling of 82662800064657 in words is "eighty-two trillion, six hundred sixty-two billion, eight hundred million, sixty-four thousand, six hundred fifty-seven".