113054666561 has 4 divisors (see below), whose sum is σ = 114742049712. Its totient is φ = 111367283412.

The previous prime is 113054666521. The next prime is 113054666603. The reversal of 113054666561 is 165666450311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165666450311 = 71411 ⋅2319901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113054666561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113054666521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843691475 + ... + 843691608.

It is an arithmetic number, because the mean of its divisors is an integer number (28685512428).

Almost surely, 2^113054666561 is an apocalyptic number.

It is an amenable number.

113054666561 is a deficient number, since it is larger than the sum of its proper divisors (1687383151).

113054666561 is an equidigital number, since it uses as much as digits as its factorization.

113054666561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687383150.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 113054666561 in words is "one hundred thirteen billion, fifty-four million, six hundred sixty-six thousand, five hundred sixty-one".