61330830155656 has 32 divisors (see below), whose sum is σ = 119524456641600. Its totient is φ = 29467664735040.

The previous prime is 61330830155593. The next prime is 61330830155657. The reversal of 61330830155656 is 65655103803316.

It is a super-2 number, since 2×61330830155656² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61330830155657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626389500 + ... + 626487403.

It is an arithmetic number, because the mean of its divisors is an integer number (3735139270050).

Almost surely, 2^{61330830155656} is an apocalyptic number.

It is an amenable number.

61330830155656 is a deficient number, since it is larger than the sum of its proper divisors (58193626485944).

61330830155656 is a wasteful number, since it uses less digits than its factorization.

61330830155656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252877149 (or 1252877145 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 61330830155656 in words is "sixty-one trillion, three hundred thirty billion, eight hundred thirty million, one hundred fifty-five thousand, six hundred fifty-six".