12517401601 has 4 divisors (see below), whose sum is σ = 12693703104. Its totient is φ = 12341100100.

The previous prime is 12517401581. The next prime is 12517401607. The reversal of 12517401601 is 10610471521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12517401601 - 2⁹ = 12517401089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12517401601.

It is not an unprimeable number, because it can be changed into a prime (12517401607) 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, 88150645 + ... + 88150786.

It is an arithmetic number, because the mean of its divisors is an integer number (3173425776).

Almost surely, 2^12517401601 is an apocalyptic number.

It is an amenable number.

12517401601 is a deficient number, since it is larger than the sum of its proper divisors (176301503).

12517401601 is an equidigital number, since it uses as much as digits as its factorization.

12517401601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176301502.

The product of its (nonzero) digits is 1680, while the sum is 28.

The spelling of 12517401601 in words is "twelve billion, five hundred seventeen million, four hundred one thousand, six hundred one".