3115565881 has 8 divisors (see below), whose sum is σ = 3129872000. Its totient is φ = 3101293008.

The previous prime is 3115565807. The next prime is 3115565899. The reversal of 3115565881 is 1885655113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3115565881 - 2²³ = 3107177273 is a prime.

It is a super-2 number, since 2×3115565881² = 19413501517702612322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3115560881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190240 + ... + 205966.

It is an arithmetic number, because the mean of its divisors is an integer number (391234000).

Almost surely, 2^3115565881 is an apocalyptic number.

It is an amenable number.

3115565881 is a deficient number, since it is larger than the sum of its proper divisors (14306119).

3115565881 is a wasteful number, since it uses less digits than its factorization.

3115565881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16623.

The product of its digits is 144000, while the sum is 43.

The square root of 3115565881 is about 55817.2543305383. The cubic root of 3115565881 is about 1460.5361577764.

The spelling of 3115565881 in words is "three billion, one hundred fifteen million, five hundred sixty-five thousand, eight hundred eighty-one".