88118561 has 16 divisors (see below), whose sum is σ = 95765760. Its totient is φ = 80812800.

The previous prime is 88118557. The next prime is 88118573. The reversal of 88118561 is 16581188.

It is a cyclic number.

It is not a de Polignac number, because 88118561 - 2² = 88118557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88118521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89705 + ... + 90681.

It is an arithmetic number, because the mean of its divisors is an integer number (5985360).

Almost surely, 2^88118561 is an apocalyptic number.

It is an amenable number.

88118561 is a deficient number, since it is larger than the sum of its proper divisors (7647199).

88118561 is a wasteful number, since it uses less digits than its factorization.

88118561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its digits is 15360, while the sum is 38.

The square root of 88118561 is about 9387.1487151318. The cubic root of 88118561 is about 444.9956840048.

The spelling of 88118561 in words is "eighty-eight million, one hundred eighteen thousand, five hundred sixty-one".