202170172052 has 36 divisors (see below), whose sum is σ = 361058462688. Its totient is φ = 99048322800.

The previous prime is 202170171949. The next prime is 202170172067. The reversal of 202170172052 is 250271071202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3255977 + ... + 3317487.

Almost surely, 2^202170172052 is an apocalyptic number.

It is an amenable number.

202170172052 is a deficient number, since it is larger than the sum of its proper divisors (158888290636).

202170172052 is a wasteful number, since it uses less digits than its factorization.

202170172052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61820 (or 61747 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 202170172052 in words is "two hundred two billion, one hundred seventy million, one hundred seventy-two thousand, fifty-two".