85996919664 has 60 divisors (see below), whose sum is σ = 247176597096. Its totient is φ = 27890891136.

The previous prime is 85996919581. The next prime is 85996919677. The reversal of 85996919664 is 46691969958.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 85996919592 and 85996919601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8064954 + ... + 8075609.

Almost surely, 2^85996919664 is an apocalyptic number.

It is an amenable number.

85996919664 is an abundant number, since it is smaller than the sum of its proper divisors (161179677432).

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

85996919664 is a wasteful number, since it uses less digits than its factorization.

85996919664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140614 (or 16140605 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 72.

The spelling of 85996919664 in words is "eighty-five billion, nine hundred ninety-six million, nine hundred nineteen thousand, six hundred sixty-four".