23000640553 has 12 divisors (see below), whose sum is σ = 25718545584. Its totient is φ = 20399664800.

The previous prime is 23000640547. The next prime is 23000640563. The reversal of 23000640553 is 35504600032.

It is not a de Polignac number, because 23000640553 - 2⁹ = 23000640041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23000640503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603451 + ... + 640432.

It is an arithmetic number, because the mean of its divisors is an integer number (2143212132).

Almost surely, 2^23000640553 is an apocalyptic number.

It is an amenable number.

23000640553 is a deficient number, since it is larger than the sum of its proper divisors (2717905031).

23000640553 is a wasteful number, since it uses less digits than its factorization.

23000640553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243976 (or 1243935 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 23000640553 in words is "twenty-three billion, six hundred forty thousand, five hundred fifty-three".