82501608520 has 32 divisors (see below), whose sum is σ = 185837976000. Its totient is φ = 32963424448.

The previous prime is 82501608517. The next prime is 82501608521. The reversal of 82501608520 is 2580610528.

It is a self number, because there is not a number n which added to its sum of digits gives 82501608520.

It is not an unprimeable number, because it can be changed into a prime (82501608521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127170 + ... + 1198129.

It is an arithmetic number, because the mean of its divisors is an integer number (5807436750).

Almost surely, 2^82501608520 is an apocalyptic number.

It is an amenable number.

82501608520 is an abundant number, since it is smaller than the sum of its proper divisors (103336367480).

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

82501608520 is a wasteful number, since it uses less digits than its factorization.

82501608520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326197 (or 2326193 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 82501608520 in words is "eighty-two billion, five hundred one million, six hundred eight thousand, five hundred twenty".