2666313165402 has 24 divisors (see below), whose sum is σ = 6116836086036. Its totient is φ = 836490404736.

The previous prime is 2666313165361. The next prime is 2666313165449. The reversal of 2666313165402 is 2045613136662.

It can be written as a sum of positive squares in 2 ways, for example, as 2190432560121 + 475880605281 = 1480011^2 + 689841^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4356720553 + ... + 4356721164.

Almost surely, 2^{2666313165402} is an apocalyptic number.

2666313165402 is an abundant number, since it is smaller than the sum of its proper divisors (3450522920634).

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

2666313165402 is a wasteful number, since it uses less digits than its factorization.

2666313165402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713441742 (or 8713441739 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 2666313165402 in words is "two trillion, six hundred sixty-six billion, three hundred thirteen million, one hundred sixty-five thousand, four hundred two".