511216420036 has 27 divisors (see below), whose sum is σ = 1040710947087. Its totient is φ = 219088461480.

The previous prime is 511216420021. The next prime is 511216420063. The reversal of 511216420036 is 630024612115.

It is a happy number.

The square root of 511216420036 is 714994.

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

It is a super-2 number, since 2×511216420036² (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 8 ways as a sum of consecutive naturals, for example, 9984381 + ... + 10035451.

Almost surely, 2^511216420036 is an apocalyptic number.

511216420036 is the 714994-th square number.

It is an amenable number.

511216420036 is an abundant number, since it is smaller than the sum of its proper divisors (529494527051).

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

511216420036 is an frugal number, since it uses more digits than its factorization.

511216420036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102160 (or 51080 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 511216420036 in words is "five hundred eleven billion, two hundred sixteen million, four hundred twenty thousand, thirty-six".