202170656118 has 16 divisors (see below), whose sum is σ = 404501098176. Its totient is φ = 67363587720.

The previous prime is 202170656113. The next prime is 202170656147. The reversal of 202170656118 is 811656071202.

It is a super-2 number, since 2×202170656118² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202170656113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6641296 + ... + 6671667.

It is an arithmetic number, because the mean of its divisors is an integer number (25281318636).

Almost surely, 2^202170656118 is an apocalyptic number.

202170656118 is an abundant number, since it is smaller than the sum of its proper divisors (202330442058).

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

202170656118 is a wasteful number, since it uses less digits than its factorization.

202170656118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13315499.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 202170656118 in words is "two hundred two billion, one hundred seventy million, six hundred fifty-six thousand, one hundred eighteen".