1164172672 has 64 divisors (see below), whose sum is σ = 2508881760. Its totient is φ = 534896640.

The previous prime is 1164172663. The next prime is 1164172687. The reversal of 1164172672 is 2762714611.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399573 + ... + 402475.

Almost surely, 2^1164172672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1164172672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254440880).

1164172672 is an abundant number, since it is smaller than the sum of its proper divisors (1344709088).

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

1164172672 is a wasteful number, since it uses less digits than its factorization.

1164172672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3159 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 1164172672 is about 34119.9746775990. The cubic root of 1164172672 is about 1051.9759231527.

The spelling of 1164172672 in words is "one billion, one hundred sixty-four million, one hundred seventy-two thousand, six hundred seventy-two".