172005270051116 has 12 divisors (see below), whose sum is σ = 301014032941440. Its totient is φ = 86001260639280.

The previous prime is 172005270051103. The next prime is 172005270051191. The reversal of 172005270051116 is 611150072500271.

It is a self number, because there is not a number n which added to its sum of digits gives 172005270051116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343314956 + ... + 343815603.

It is an arithmetic number, because the mean of its divisors is an integer number (25084502745120).

Almost surely, 2^{172005270051116} is an apocalyptic number.

It is an amenable number.

172005270051116 is a deficient number, since it is larger than the sum of its proper divisors (129008762890324).

172005270051116 is a wasteful number, since it uses less digits than its factorization.

172005270051116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687193144 (or 687193142 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 38.

The spelling of 172005270051116 in words is "one hundred seventy-two trillion, five billion, two hundred seventy million, fifty-one thousand, one hundred sixteen".