216015510612 has 48 divisors (see below), whose sum is σ = 549942450624. Its totient is φ = 65449152000.

The previous prime is 216015510593. The next prime is 216015510637.

216015510612 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×216015510612² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216015510612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756412 + ... + 1002092.

It is an arithmetic number, because the mean of its divisors is an integer number (11457134388).

Almost surely, 2^216015510612 is an apocalyptic number.

216015510612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216015510612 is an abundant number, since it is smaller than the sum of its proper divisors (333926940012).

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

216015510612 is a wasteful number, since it uses less digits than its factorization.

216015510612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252360 (or 252358 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

It can be divided in two parts, 216015 and 510612, that added together give a palindrome (726627).

The spelling of 216015510612 in words is "two hundred sixteen billion, fifteen million, five hundred ten thousand, six hundred twelve".