61616162960 has 80 divisors (see below), whose sum is σ = 161322388992. Its totient is φ = 21683097600.

The previous prime is 61616162953. The next prime is 61616162983. The reversal of 61616162960 is 6926161616.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

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 15 ways as a sum of consecutive naturals, for example, 1102049 + ... + 1156608.

Almost surely, 2^61616162960 is an apocalyptic number.

It is an amenable number.

61616162960 is an abundant number, since it is smaller than the sum of its proper divisors (99706226032).

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

61616162960 is a wasteful number, since it uses less digits than its factorization.

61616162960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258712 (or 2258706 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 61616162960 in words is "sixty-one billion, six hundred sixteen million, one hundred sixty-two thousand, nine hundred sixty".