12662637503 has 4 divisors (see below), whose sum is σ = 12662953728. Its totient is φ = 12662321280.

The previous prime is 12662637469. The next prime is 12662637509. The reversal of 12662637503 is 30573626621.

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 12662637503 - 2²² = 12658443199 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 (12662637509) 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, 87551 + ... + 181632.

It is an arithmetic number, because the mean of its divisors is an integer number (3165738432).

Almost surely, 2^12662637503 is an apocalyptic number.

12662637503 is a deficient number, since it is larger than the sum of its proper divisors (316225).

12662637503 is an equidigital number, since it uses as much as digits as its factorization.

12662637503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316224.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 12662637503 in words is "twelve billion, six hundred sixty-two million, six hundred thirty-seven thousand, five hundred three".