9955079172 has 36 divisors (see below), whose sum is σ = 26096238896. Its totient is φ = 3318359400.

The previous prime is 9955079171. The next prime is 9955079207. The reversal of 9955079172 is 2719705599.

9955079172 is a `hidden beast` number, since 9 + 9 + 550 + 79 + 17 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (9955079171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5119954 + ... + 5121897.

Almost surely, 2^9955079172 is an apocalyptic number.

It is an amenable number.

9955079172 is an abundant number, since it is smaller than the sum of its proper divisors (16141159724).

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

9955079172 is a wasteful number, since it uses less digits than its factorization.

9955079172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10241870 (or 10241856 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 54.

The square root of 9955079172 is about 99775.1430567754. The cubic root of 9955079172 is about 2151.2038811666.

The spelling of 9955079172 in words is "nine billion, nine hundred fifty-five million, seventy-nine thousand, one hundred seventy-two".