616323612 has 12 divisors (see below), whose sum is σ = 1438088456. Its totient is φ = 205441200.

The previous prime is 616323611. The next prime is 616323619. The reversal of 616323612 is 216323616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 616323612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616323611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25680139 + ... + 25680162.

Almost surely, 2^616323612 is an apocalyptic number.

It is an amenable number.

616323612 is an abundant number, since it is smaller than the sum of its proper divisors (821764844).

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

616323612 is a wasteful number, since it uses less digits than its factorization.

616323612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51360308 (or 51360306 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 616323612 is about 24825.8657855069. The cubic root of 616323612 is about 851.0131457790.

The spelling of 616323612 in words is "six hundred sixteen million, three hundred twenty-three thousand, six hundred twelve".