172200072150 has 96 divisors (see below), whose sum is σ = 474593433600. Its totient is φ = 45911642400.

The previous prime is 172200072131. The next prime is 172200072151. The reversal of 172200072150 is 51270002271.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172200072151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11925435 + ... + 11939865.

It is an arithmetic number, because the mean of its divisors is an integer number (4943681600).

Almost surely, 2^172200072150 is an apocalyptic number.

172200072150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172200072150 is an abundant number, since it is smaller than the sum of its proper divisors (302393361450).

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

172200072150 is a wasteful number, since it uses less digits than its factorization.

172200072150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23291 (or 23280 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The spelling of 172200072150 in words is "one hundred seventy-two billion, two hundred million, seventy-two thousand, one hundred fifty".