202161366 has 32 divisors (see below), whose sum is σ = 490089600. Its totient is φ = 61260840.

The previous prime is 202161307. The next prime is 202161373. The reversal of 202161366 is 663161202.

202161366 is a `hidden beast` number, since 20 + 21 + 613 + 6 + 6 = 666.

202161366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169576 + ... + 170763.

It is an arithmetic number, because the mean of its divisors is an integer number (15315300).

Almost surely, 2^202161366 is an apocalyptic number.

202161366 is an abundant number, since it is smaller than the sum of its proper divisors (287928234).

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

202161366 is a wasteful number, since it uses less digits than its factorization.

202161366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340361 (or 340355 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 202161366 is about 14218.3461063515. The cubic root of 202161366 is about 586.9026284087.

The spelling of 202161366 in words is "two hundred two million, one hundred sixty-one thousand, three hundred sixty-six".