201656161060 has 24 divisors (see below), whose sum is σ = 423490580856. Its totient is φ = 80660056320.

The previous prime is 201656161039. The next prime is 201656161087. The reversal of 201656161060 is 60161656102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 340623936 + 201315537124 = 18456^2 + 448682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636550 + ... + 899170.

It is an arithmetic number, because the mean of its divisors is an integer number (17645440869).

Almost surely, 2^201656161060 is an apocalyptic number.

201656161060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201656161060 is an abundant number, since it is smaller than the sum of its proper divisors (221834419796).

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

201656161060 is a wasteful number, since it uses less digits than its factorization.

201656161060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301023 (or 301021 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 201656161060 in words is "two hundred one billion, six hundred fifty-six million, one hundred sixty-one thousand, sixty".