202161064 has 48 divisors (see below), whose sum is σ = 464162400. Its totient is φ = 82077408.

The previous prime is 202161061. The next prime is 202161073. The reversal of 202161064 is 460161202.

It is a super-2 number, since 2×202161064² = 81738191595224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202161061) by changing a digit.

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, 6124 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (9670050).

Almost surely, 2^202161064 is an apocalyptic number.

It is an amenable number.

202161064 is an abundant number, since it is smaller than the sum of its proper divisors (262001336).

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

202161064 is a wasteful number, since it uses less digits than its factorization.

202161064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27182 (or 27171 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 202161064 is about 14218.3354862656. The cubic root of 202161064 is about 586.9023361592.

The spelling of 202161064 in words is "two hundred two million, one hundred sixty-one thousand, sixty-four".