2166065311602 has 16 divisors (see below), whose sum is σ = 4335470754912. Its totient is φ = 721465081920.

The previous prime is 2166065311591. The next prime is 2166065311637. The reversal of 2166065311602 is 2061135606612.

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, 139163724 + ... + 139179287.

It is an arithmetic number, because the mean of its divisors is an integer number (270966922182).

Almost surely, 2^{2166065311602} is an apocalyptic number.

2166065311602 is an abundant number, since it is smaller than the sum of its proper divisors (2169405443310).

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

2166065311602 is a wasteful number, since it uses less digits than its factorization.

2166065311602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278344313.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 2166065311602 in words is "two trillion, one hundred sixty-six billion, sixty-five million, three hundred eleven thousand, six hundred two".