11400656211623 has 4 divisors (see below), whose sum is σ = 13029321384720. Its totient is φ = 9771991038528.

The previous prime is 11400656211617. The next prime is 11400656211661. The reversal of 11400656211623 is 32611265600411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11400656211623 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 (11400656211613) 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, 814332586538 + ... + 814332586551.

It is an arithmetic number, because the mean of its divisors is an integer number (3257330346180).

Almost surely, 2^{11400656211623} is an apocalyptic number.

11400656211623 is a deficient number, since it is larger than the sum of its proper divisors (1628665173097).

11400656211623 is an equidigital number, since it uses as much as digits as its factorization.

11400656211623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628665173096.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 11400656211623 in words is "eleven trillion, four hundred billion, six hundred fifty-six million, two hundred eleven thousand, six hundred twenty-three".