85559019880 has 32 divisors (see below), whose sum is σ = 193306604040. Its totient is φ = 34081597440.

The previous prime is 85559019877. The next prime is 85559019881. The reversal of 85559019880 is 8891095558.

It can be written as a sum of positive squares in 4 ways, for example, as 82945152004 + 2613867876 = 288002^2 + 51126^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85559019881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4428069 + ... + 4447348.

Almost surely, 2^85559019880 is an apocalyptic number.

It is an amenable number.

85559019880 is an abundant number, since it is smaller than the sum of its proper divisors (107747584160).

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

85559019880 is a wasteful number, since it uses less digits than its factorization.

85559019880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875669 (or 8875665 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 58.

The spelling of 85559019880 in words is "eighty-five billion, five hundred fifty-nine million, nineteen thousand, eight hundred eighty".