85600720944 has 50 divisors (see below), whose sum is σ = 247753324940. Its totient is φ = 28533573216.

The previous prime is 85600720939. The next prime is 85600720973. The reversal of 85600720944 is 44902700658.

It is a happy number.

It is a super-2 number, since 2×85600720944² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85600720944.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33023674 + ... + 33026265.

Almost surely, 2^85600720944 is an apocalyptic number.

It is an amenable number.

85600720944 is an abundant number, since it is smaller than the sum of its proper divisors (162152603996).

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

85600720944 is a wasteful number, since it uses less digits than its factorization.

85600720944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66049959 (or 66049944 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 85600720944 in words is "eighty-five billion, six hundred million, seven hundred twenty thousand, nine hundred forty-four".