22553256476643 has 4 divisors (see below), whose sum is σ = 30071008635528. Its totient is φ = 15035504317760.

The previous prime is 22553256476629. The next prime is 22553256476669. The reversal of 22553256476643 is 34667465235522.

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 22553256476643 - 2⁶ = 22553256476579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22553256476693) 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, 3758876079438 + ... + 3758876079443.

It is an arithmetic number, because the mean of its divisors is an integer number (7517752158882).

Almost surely, 2^{22553256476643} is an apocalyptic number.

22553256476643 is a deficient number, since it is larger than the sum of its proper divisors (7517752158885).

22553256476643 is an equidigital number, since it uses as much as digits as its factorization.

22553256476643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517752158884.

The product of its digits is 217728000, while the sum is 60.

The spelling of 22553256476643 in words is "twenty-two trillion, five hundred fifty-three billion, two hundred fifty-six million, four hundred seventy-six thousand, six hundred forty-three".