616546520 has 64 divisors (see below), whose sum is σ = 1444595040. Its totient is φ = 236620800.

The previous prime is 616546499. The next prime is 616546543. The reversal of 616546520 is 25645616.

616546520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×616546520² = 760259222648220800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96959 + ... + 103121.

Almost surely, 2^616546520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616546520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722297520).

616546520 is an abundant number, since it is smaller than the sum of its proper divisors (828048520).

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

616546520 is a wasteful number, since it uses less digits than its factorization.

616546520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276 (or 6272 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 616546520 is about 24830.3548101915. The cubic root of 616546520 is about 851.1157297514.

The spelling of 616546520 in words is "six hundred sixteen million, five hundred forty-six thousand, five hundred twenty".