202161616 has 20 divisors (see below), whose sum is σ = 393080992. Its totient is φ = 100721376.

The previous prime is 202161613. The next prime is 202161623. The reversal of 202161616 is 616161202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202161613) 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 3 ways as a sum of consecutive naturals, for example, 17796 + ... + 26851.

Almost surely, 2^202161616 is an apocalyptic number.

It is an amenable number.

202161616 is a deficient number, since it is larger than the sum of its proper divisors (190919376).

202161616 is a wasteful number, since it uses less digits than its factorization.

202161616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938 (or 44932 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 202161616 is about 14218.3548978073. The cubic root of 202161616 is about 586.9028703369.

The spelling of 202161616 in words is "two hundred two million, one hundred sixty-one thousand, six hundred sixteen".