85601815554 has 32 divisors (see below), whose sum is σ = 173639448576. Its totient is φ = 28128082640.

The previous prime is 85601815529. The next prime is 85601815561. The reversal of 85601815554 is 45551810658.

It is a super-2 number, since 2×85601815554² (a number of 23 digits) contains 22 as substring.

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, 5942749 + ... + 5957135.

It is an arithmetic number, because the mean of its divisors is an integer number (5426232768).

Almost surely, 2^85601815554 is an apocalyptic number.

85601815554 is an abundant number, since it is smaller than the sum of its proper divisors (88037633022).

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

85601815554 is a wasteful number, since it uses less digits than its factorization.

85601815554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28430.

The product of its (nonzero) digits is 960000, while the sum is 48.

The spelling of 85601815554 in words is "eighty-five billion, six hundred one million, eight hundred fifteen thousand, five hundred fifty-four".