88420131566 has 32 divisors (see below), whose sum is σ = 148531622400. Its totient is φ = 39195717120.

The previous prime is 88420131559. The next prime is 88420131571. The reversal of 88420131566 is 66513102488.

It is a super-2 number, since 2×88420131566² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 162971 + ... + 450998.

It is an arithmetic number, because the mean of its divisors is an integer number (4641613200).

Almost surely, 2^88420131566 is an apocalyptic number.

88420131566 is a deficient number, since it is larger than the sum of its proper divisors (60111490834).

88420131566 is a wasteful number, since it uses less digits than its factorization.

88420131566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614204.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 88420131566 in words is "eighty-eight billion, four hundred twenty million, one hundred thirty-one thousand, five hundred sixty-six".