172204844080 has 20 divisors (see below), whose sum is σ = 400376262672. Its totient is φ = 68881937600.

The previous prime is 172204844047. The next prime is 172204844099. The reversal of 172204844080 is 80448402271.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×172204844080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076280196 + ... + 1076280355.

Almost surely, 2^172204844080 is an apocalyptic number.

172204844080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172204844080 is an abundant number, since it is smaller than the sum of its proper divisors (228171418592).

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

172204844080 is a wasteful number, since it uses less digits than its factorization.

172204844080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152560564 (or 2152560558 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 40.

The spelling of 172204844080 in words is "one hundred seventy-two billion, two hundred four million, eight hundred forty-four thousand, eighty".