172150055651 has 16 divisors (see below), whose sum is σ = 199097713920. Its totient is φ = 145801162080.

The previous prime is 172150055633. The next prime is 172150055653. The reversal of 172150055651 is 156550051271.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-172150055651 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213956 + ... + 624561.

It is an arithmetic number, because the mean of its divisors is an integer number (12443607120).

Almost surely, 2^172150055651 is an apocalyptic number.

172150055651 is a deficient number, since it is larger than the sum of its proper divisors (26947658269).

172150055651 is a wasteful number, since it uses less digits than its factorization.

172150055651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838874.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 172150055651 in words is "one hundred seventy-two billion, one hundred fifty million, fifty-five thousand, six hundred fifty-one".