656060120460 has 60 divisors (see below), whose sum is σ = 2058084901488. Its totient is φ = 174949365024.

The previous prime is 656060120453. The next prime is 656060120461. The reversal of 656060120460 is 64021060656.

It is a happy number.

656060120460 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 601 + 2 + 0 + 46 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×656060120460² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (656060120461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 202486072 + ... + 202489311.

Almost surely, 2^656060120460 is an apocalyptic number.

656060120460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

656060120460 is an abundant number, since it is smaller than the sum of its proper divisors (1402024781028).

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

656060120460 is a wasteful number, since it uses less digits than its factorization.

656060120460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404975404 (or 404975393 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 656060120460 in words is "six hundred fifty-six billion, sixty million, one hundred twenty thousand, four hundred sixty".