12646002553 has 8 divisors (see below), whose sum is σ = 12680883072. Its totient is φ = 12611170656.

The previous prime is 12646002541. The next prime is 12646002563. The reversal of 12646002553 is 35520064621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12646002553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12646002533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543076 + ... + 565882.

It is an arithmetic number, because the mean of its divisors is an integer number (1585110384).

Almost surely, 2^12646002553 is an apocalyptic number.

It is an amenable number.

12646002553 is a deficient number, since it is larger than the sum of its proper divisors (34880519).

12646002553 is an equidigital number, since it uses as much as digits as its factorization.

12646002553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 12646002553 in words is "twelve billion, six hundred forty-six million, two thousand, five hundred fifty-three".