2166075560677 has 48 divisors (see below), whose sum is σ = 2644103368192. Its totient is φ = 1736885928960.

The previous prime is 2166075560669. The next prime is 2166075560683. The reversal of 2166075560677 is 7760655706612.

It is not a de Polignac number, because 2166075560677 - 2³ = 2166075560669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166075570677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52473748 + ... + 52515010.

Almost surely, 2^{2166075560677} is an apocalyptic number.

It is an amenable number.

2166075560677 is a deficient number, since it is larger than the sum of its proper divisors (478027807515).

2166075560677 is a wasteful number, since it uses less digits than its factorization.

2166075560677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41606 (or 41577 counting only the distinct ones).

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 2166075560677 in words is "two trillion, one hundred sixty-six billion, seventy-five million, five hundred sixty thousand, six hundred seventy-seven".