516557642146172 has 48 divisors (see below), whose sum is σ = 1009683285072000. Its totient is φ = 229203502234560.

The previous prime is 516557642146159. The next prime is 516557642146193. The reversal of 516557642146172 is 271641246755615.

It is a super-2 number, since 2×516557642146172² (a number of 30 digits) contains 22 as substring.

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, 77133347 + ... + 83562362.

It is an arithmetic number, because the mean of its divisors is an integer number (21035068439000).

Almost surely, 2^{516557642146172} is an apocalyptic number.

It is an amenable number.

516557642146172 is a deficient number, since it is larger than the sum of its proper divisors (493125642925828).

516557642146172 is a wasteful number, since it uses less digits than its factorization.

516557642146172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160697466 (or 160697464 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 62.

The spelling of 516557642146172 in words is "five hundred sixteen trillion, five hundred fifty-seven billion, six hundred forty-two million, one hundred forty-six thousand, one hundred seventy-two".