16512616220 has 48 divisors (see below), whose sum is σ = 35431240320. Its totient is φ = 6461420544.

The previous prime is 16512616213. The next prime is 16512616231. The reversal of 16512616220 is 2261621561.

16512616220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3653402 + ... + 3657918.

It is an arithmetic number, because the mean of its divisors is an integer number (738150840).

Almost surely, 2^16512616220 is an apocalyptic number.

16512616220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16512616220 is an abundant number, since it is smaller than the sum of its proper divisors (18918624100).

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

16512616220 is a wasteful number, since it uses less digits than its factorization.

16512616220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8462 (or 8460 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 16512616220 in words is "sixteen billion, five hundred twelve million, six hundred sixteen thousand, two hundred twenty".