516912109156 has 9 divisors (see below), whose sum is σ = 904598707411. Its totient is φ = 258455335612.

The previous prime is 516912109141. The next prime is 516912109159. The reversal of 516912109156 is 651901219615.

The square root of 516912109156 is 718966.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516912109159) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1258191 + ... + 1617673.

Almost surely, 2^516912109156 is an apocalyptic number.

516912109156 is the 718966-th square number.

It is an amenable number.

516912109156 is a deficient number, since it is larger than the sum of its proper divisors (387686598255).

516912109156 is an frugal number, since it uses more digits than its factorization.

516912109156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718970 (or 359485 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 46.

The spelling of 516912109156 in words is "five hundred sixteen billion, nine hundred twelve million, one hundred nine thousand, one hundred fifty-six".