2557166667011 has 4 divisors (see below), whose sum is σ = 2789636364024. Its totient is φ = 2324696970000.

The previous prime is 2557166666963. The next prime is 2557166667017. The reversal of 2557166667011 is 1107666617552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2557166667011 - 2¹⁰ = 2557166665987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557166667017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116234848490 + ... + 116234848511.

It is an arithmetic number, because the mean of its divisors is an integer number (697409091006).

Almost surely, 2^{2557166667011} is an apocalyptic number.

2557166667011 is a deficient number, since it is larger than the sum of its proper divisors (232469697013).

2557166667011 is a wasteful number, since it uses less digits than its factorization.

2557166667011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232469697012.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 2557166667011 in words is "two trillion, five hundred fifty-seven billion, one hundred sixty-six million, six hundred sixty-seven thousand, eleven".