172630061165220 has 48 divisors (see below), whose sum is σ = 483871374120960. Its totient is φ = 45986377943296.

The previous prime is 172630061165207. The next prime is 172630061165227. The reversal of 172630061165220 is 22561160036271.

It is a super-2 number, since 2×172630061165220² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172630061165227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1509474660 + ... + 1509589019.

It is an arithmetic number, because the mean of its divisors is an integer number (10080653627520).

Almost surely, 2^{172630061165220} is an apocalyptic number.

172630061165220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172630061165220 is an abundant number, since it is smaller than the sum of its proper divisors (311241312955740).

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

172630061165220 is a wasteful number, since it uses less digits than its factorization.

172630061165220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019064644 (or 3019064642 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 172630061165220 in words is "one hundred seventy-two trillion, six hundred thirty billion, sixty-one million, one hundred sixty-five thousand, two hundred twenty".