2166201365260 has 48 divisors (see below), whose sum is σ = 4553428186944. Its totient is φ = 865641869568.

The previous prime is 2166201365231. The next prime is 2166201365323. The reversal of 2166201365260 is 625631026612.

It is a happy 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, 95978497 + ... + 96001063.

It is an arithmetic number, because the mean of its divisors is an integer number (94863087228).

Almost surely, 2^{2166201365260} is an apocalyptic number.

2166201365260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2166201365260 is an abundant number, since it is smaller than the sum of its proper divisors (2387226821684).

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

2166201365260 is a wasteful number, since it uses less digits than its factorization.

2166201365260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27010 (or 27008 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 2166201365260 in words is "two trillion, one hundred sixty-six billion, two hundred one million, three hundred sixty-five thousand, two hundred sixty".