531255513214216 has 16 divisors (see below), whose sum is σ = 1138404671173440. Its totient is φ = 227680934234640.

The previous prime is 531255513214213. The next prime is 531255513214219. The reversal of 531255513214216 is 612412315552135.

It is an interprime number because it is at equal distance from previous prime (531255513214213) and next prime (531255513214219).

It is not an unprimeable number, because it can be changed into a prime (531255513214211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743352796500 + ... + 4743352796611.

It is an arithmetic number, because the mean of its divisors is an integer number (71150291948340).

Almost surely, 2^{531255513214216} is an apocalyptic number.

531255513214216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

531255513214216 is an abundant number, since it is smaller than the sum of its proper divisors (607149157959224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531255513214216 is a wasteful number, since it uses less digits than its factorization.

531255513214216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486705593124 (or 9486705593120 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 46.

The spelling of 531255513214216 in words is "five hundred thirty-one trillion, two hundred fifty-five billion, five hundred thirteen million, two hundred fourteen thousand, two hundred sixteen".