11605057055551 has 4 divisors (see below), whose sum is σ = 11605121039704. Its totient is φ = 11604993071400.

The previous prime is 11605057055519. The next prime is 11605057055591. The reversal of 11605057055551 is 15555075050611.

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 11605057055551 - 2⁵ = 11605057055519 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 (11605057055591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31719240 + ... + 32083021.

It is an arithmetic number, because the mean of its divisors is an integer number (2901280259926).

Almost surely, 2^{11605057055551} is an apocalyptic number.

11605057055551 is a deficient number, since it is larger than the sum of its proper divisors (63984153).

11605057055551 is an equidigital number, since it uses as much as digits as its factorization.

11605057055551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63984152.

The product of its (nonzero) digits is 656250, while the sum is 46.

The spelling of 11605057055551 in words is "eleven trillion, six hundred five billion, fifty-seven million, fifty-five thousand, five hundred fifty-one".