13664875503 has 16 divisors (see below), whose sum is σ = 18451087200. Its totient is φ = 8994585600.

The previous prime is 13664875493. The next prime is 13664875513. The reversal of 13664875503 is 30557846631.

It is an interprime number because it is at equal distance from previous prime (13664875493) and next prime (13664875513).

It is not a de Polignac number, because 13664875503 - 2⁶ = 13664875439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664875513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150663 + ... + 223671.

It is an arithmetic number, because the mean of its divisors is an integer number (1153192950).

Almost surely, 2^13664875503 is an apocalyptic number.

13664875503 is a deficient number, since it is larger than the sum of its proper divisors (4786211697).

13664875503 is an equidigital number, since it uses as much as digits as its factorization.

13664875503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73802.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 13664875503 in words is "thirteen billion, six hundred sixty-four million, eight hundred seventy-five thousand, five hundred three".