172516506000 has 80 divisors (see below), whose sum is σ = 556193234688. Its totient is φ = 46004400000.

The previous prime is 172516505999. The next prime is 172516506013. The reversal of 172516506000 is 605615271.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14370376 + ... + 14382375.

Almost surely, 2^172516506000 is an apocalyptic number.

172516506000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172516506000 is an abundant number, since it is smaller than the sum of its proper divisors (383676728688).

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

172516506000 is a wasteful number, since it uses less digits than its factorization.

172516506000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28752777 (or 28752761 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 172516506000 in words is "one hundred seventy-two billion, five hundred sixteen million, five hundred six thousand".