85583581580 has 48 divisors (see below), whose sum is σ = 206878344960. Its totient is φ = 29131835328.

The previous prime is 85583581487. The next prime is 85583581591. The reversal of 85583581580 is 8518538558.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2179502 + ... + 2218421.

It is an arithmetic number, because the mean of its divisors is an integer number (4309965520).

Almost surely, 2^85583581580 is an apocalyptic number.

It is an amenable number.

85583581580 is an abundant number, since it is smaller than the sum of its proper divisors (121294763380).

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

85583581580 is a wasteful number, since it uses less digits than its factorization.

85583581580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398078 (or 4398076 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 56.

The spelling of 85583581580 in words is "eighty-five billion, five hundred eighty-three million, five hundred eighty-one thousand, five hundred eighty".