88020037557 has 8 divisors (see below), whose sum is σ = 130400055680. Its totient is φ = 58680025020.

The previous prime is 88020037529. The next prime is 88020037591. The reversal of 88020037557 is 75573002088.

It is not a de Polignac number, because 88020037557 - 2¹² = 88020033461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88020030557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630000669 + ... + 1630000722.

It is an arithmetic number, because the mean of its divisors is an integer number (16300006960).

Almost surely, 2^88020037557 is an apocalyptic number.

It is an amenable number.

88020037557 is a deficient number, since it is larger than the sum of its proper divisors (42380018123).

88020037557 is a wasteful number, since it uses less digits than its factorization.

88020037557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260001400 (or 3260001394 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 88020037557 in words is "eighty-eight billion, twenty million, thirty-seven thousand, five hundred fifty-seven".