511216162156 has 24 divisors (see below), whose sum is σ = 1036832783616. Its totient is φ = 216006828240.

The previous prime is 511216162141. The next prime is 511216162183. The reversal of 511216162156 is 651261612115.

It is a super-2 number, since 2×511216162156² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128573506 + ... + 128577481.

It is an arithmetic number, because the mean of its divisors is an integer number (43201365984).

Almost surely, 2^511216162156 is an apocalyptic number.

It is an amenable number.

511216162156 is an abundant number, since it is smaller than the sum of its proper divisors (525616621460).

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

511216162156 is a wasteful number, since it uses less digits than its factorization.

511216162156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257151069 (or 257151067 counting only the distinct ones).

The product of its digits is 21600, while the sum is 37.

The spelling of 511216162156 in words is "five hundred eleven billion, two hundred sixteen million, one hundred sixty-two thousand, one hundred fifty-six".