2116560531 has 16 divisors (see below), whose sum is σ = 2858993280. Its totient is φ = 1392642240.

The previous prime is 2116560517. The next prime is 2116560553. The reversal of 2116560531 is 1350656112.

It is not a de Polignac number, because 2116560531 - 2¹⁷ = 2116429459 is a prime.

It is a super-2 number, since 2×2116560531² = 8959656962774003922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2116560431) 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, 145516 + ... + 159398.

It is an arithmetic number, because the mean of its divisors is an integer number (178687080).

Almost surely, 2^2116560531 is an apocalyptic number.

2116560531 is a deficient number, since it is larger than the sum of its proper divisors (742432749).

2116560531 is a wasteful number, since it uses less digits than its factorization.

2116560531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14546.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2116560531 is about 46006.0923248215. The cubic root of 2116560531 is about 1283.9365567055.

The spelling of 2116560531 in words is "two billion, one hundred sixteen million, five hundred sixty thousand, five hundred thirty-one".