616321304552552 has 16 divisors (see below), whose sum is σ = 1155602969953440. Its totient is φ = 308160512564976.

The previous prime is 616321304552537. The next prime is 616321304552563. The reversal of 616321304552552 is 255255403123616.

It is a self number, because there is not a number n which added to its sum of digits gives 616321304552552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2646773 + ... + 35208635.

It is an arithmetic number, because the mean of its divisors is an integer number (72225185622090).

Almost surely, 2^{616321304552552} is an apocalyptic number.

It is an amenable number.

616321304552552 is a deficient number, since it is larger than the sum of its proper divisors (539281665400888).

616321304552552 is a wasteful number, since it uses less digits than its factorization.

616321304552552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34927832 (or 34927828 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 616321304552552 in words is "six hundred sixteen trillion, three hundred twenty-one billion, three hundred four million, five hundred fifty-two thousand, five hundred fifty-two".