2666452506646 has 16 divisors (see below), whose sum is σ = 4000798040400. Its totient is φ = 1332853227648.

The previous prime is 2666452506623. The next prime is 2666452506677. The reversal of 2666452506646 is 6466052546662.

It is a congruent number.

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, 182214546 + ... + 182229178.

It is an arithmetic number, because the mean of its divisors is an integer number (250049877525).

Almost surely, 2^{2666452506646} is an apocalyptic number.

2666452506646 is a deficient number, since it is larger than the sum of its proper divisors (1334345533754).

2666452506646 is a wasteful number, since it uses less digits than its factorization.

2666452506646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33903.

The product of its (nonzero) digits is 74649600, while the sum is 58.

The spelling of 2666452506646 in words is "two trillion, six hundred sixty-six billion, four hundred fifty-two million, five hundred six thousand, six hundred forty-six".