172150055652 has 12 divisors (see below), whose sum is σ = 401683463216. Its totient is φ = 57383351880.

The previous prime is 172150055633. The next prime is 172150055653. The reversal of 172150055652 is 256550051271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 172150055652.

It is not an unprimeable number, because it can be changed into a prime (172150055653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7172918974 + ... + 7172918997.

Almost surely, 2^172150055652 is an apocalyptic number.

172150055652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172150055652 is an abundant number, since it is smaller than the sum of its proper divisors (229533407564).

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

172150055652 is a wasteful number, since it uses less digits than its factorization.

172150055652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14345837978 (or 14345837976 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 172150055652 in words is "one hundred seventy-two billion, one hundred fifty million, fifty-five thousand, six hundred fifty-two".