61172062617600 has 2016 divisors, whose sum is σ = 250768256887680. Its totient is φ = 14676708556800.

The previous prime is 61172062617581. The next prime is 61172062617607. The reversal of 61172062617600 is 671626027116.

61172062617600 is a `hidden beast` number, since 6 + 1 + 1 + 7 + 2 + 0 + 6 + 26 + 17 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (61172062617607) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 630639820752 + ... + 630639820848.

Almost surely, 2^{61172062617600} is an apocalyptic number.

61172062617600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61172062617600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125384128443840).

61172062617600 is an abundant number, since it is smaller than the sum of its proper divisors (189596194270080).

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

61172062617600 is an frugal number, since it uses more digits than its factorization.

61172062617600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 61172062617600 in words is "sixty-one trillion, one hundred seventy-two billion, sixty-two million, six hundred seventeen thousand, six hundred".