616161641504 has 48 divisors (see below), whose sum is σ = 1252392535296. Its totient is φ = 298096761600.

The previous prime is 616161641467. The next prime is 616161641519. The reversal of 616161641504 is 405146161616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6896639 + ... + 6985409.

It is an arithmetic number, because the mean of its divisors is an integer number (26091511152).

Almost surely, 2^616161641504 is an apocalyptic number.

It is an amenable number.

616161641504 is an abundant number, since it is smaller than the sum of its proper divisors (636230893792).

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

616161641504 is a wasteful number, since it uses less digits than its factorization.

616161641504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95809 (or 95801 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 616161641504 in words is "six hundred sixteen billion, one hundred sixty-one million, six hundred forty-one thousand, five hundred four".