516156161601 has 32 divisors (see below), whose sum is σ = 738059845248. Its totient is φ = 319724421120.

The previous prime is 516156161597. The next prime is 516156161617. The reversal of 516156161601 is 106161651615.

It is not a de Polignac number, because 516156161601 - 2² = 516156161597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516156161601.

It is not an unprimeable number, because it can be changed into a prime (516156166601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1089285 + ... + 1489581.

It is an arithmetic number, because the mean of its divisors is an integer number (23064370164).

Almost surely, 2^516156161601 is an apocalyptic number.

516156161601 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

516156161601 is a deficient number, since it is larger than the sum of its proper divisors (221903683647).

516156161601 is a wasteful number, since it uses less digits than its factorization.

516156161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400641.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 516156161601 in words is "five hundred sixteen billion, one hundred fifty-six million, one hundred sixty-one thousand, six hundred one".