616155412 has 12 divisors (see below), whose sum is σ = 1141699860. Its totient is φ = 289955456.

The previous prime is 616155367. The next prime is 616155433. The reversal of 616155412 is 214551616.

It can be written as a sum of positive squares in 2 ways, for example, as 164762896 + 451392516 = 12836^2 + 21246^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4530487 + ... + 4530622.

It is an arithmetic number, because the mean of its divisors is an integer number (95141655).

Almost surely, 2^616155412 is an apocalyptic number.

It is an amenable number.

616155412 is a deficient number, since it is larger than the sum of its proper divisors (525544448).

616155412 is a wasteful number, since it uses less digits than its factorization.

616155412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061130 (or 9061128 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 616155412 is about 24822.4779584956. The cubic root of 616155412 is about 850.9357224731.

The spelling of 616155412 in words is "six hundred sixteen million, one hundred fifty-five thousand, four hundred twelve".