85664977100 has 36 divisors (see below), whose sum is σ = 196827886584. Its totient is φ = 32250343680.

The previous prime is 85664977093. The next prime is 85664977109. The reversal of 85664977100 is 177946658.

It is not an unprimeable number, because it can be changed into a prime (85664977109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25193882 + ... + 25197281.

It is an arithmetic number, because the mean of its divisors is an integer number (5467441294).

Almost surely, 2^85664977100 is an apocalyptic number.

It is an amenable number.

85664977100 is an abundant number, since it is smaller than the sum of its proper divisors (111162909484).

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

85664977100 is a wasteful number, since it uses less digits than its factorization.

85664977100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50391194 (or 50391187 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 85664977100 in words is "eighty-five billion, six hundred sixty-four million, nine hundred seventy-seven thousand, one hundred".