813061172160 has 84 divisors (see below), whose sum is σ = 2796591666648. Its totient is φ = 216816311808.

The previous prime is 813061172159. The next prime is 813061172191. The reversal of 813061172160 is 61271160318.

813061172160 is a `hidden beast` number, since 8 + 1 + 30 + 611 + 7 + 2 + 1 + 6 + 0 = 666.

It is a super-2 number, since 2×813061172160² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141153574 + ... + 141159333.

Almost surely, 2^813061172160 is an apocalyptic number.

813061172160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

813061172160 is an abundant number, since it is smaller than the sum of its proper divisors (1983530494488).

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

813061172160 is a wasteful number, since it uses less digits than its factorization.

813061172160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282312930 (or 282312917 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 813061172160 in words is "eight hundred thirteen billion, sixty-one million, one hundred seventy-two thousand, one hundred sixty".