61620162960 has 120 divisors (see below), whose sum is σ = 199689344064. Its totient is φ = 15717574400.

The previous prime is 61620162941. The next prime is 61620162979. The reversal of 61620162960 is 6926102616.

It is an interprime number because it is at equal distance from previous prime (61620162941) and next prime (61620162979).

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115716 + ... + 369635.

Almost surely, 2^61620162960 is an apocalyptic number.

61620162960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61620162960 is an abundant number, since it is smaller than the sum of its proper divisors (138069181104).

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

61620162960 is a wasteful number, since it uses less digits than its factorization.

61620162960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485413 (or 485384 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 61620162960 in words is "sixty-one billion, six hundred twenty million, one hundred sixty-two thousand, nine hundred sixty".