88020042156 has 18 divisors (see below), whose sum is σ = 222495106652. Its totient is φ = 29340014040.

The previous prime is 88020042137. The next prime is 88020042179. The reversal of 88020042156 is 65124002088.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×88020042156² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2445001171 = 88020042156 / (8 + 8 + 0 + 2 + 0 + 0 + 4 + 2 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 88020042156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222500550 + ... + 1222500621.

Almost surely, 2^88020042156 is an apocalyptic number.

It is an amenable number.

88020042156 is an abundant number, since it is smaller than the sum of its proper divisors (134475064496).

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

88020042156 is a wasteful number, since it uses less digits than its factorization.

88020042156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445001181 (or 2445001176 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 88020042156 in words is "eighty-eight billion, twenty million, forty-two thousand, one hundred fifty-six".