12640167611 has 8 divisors (see below), whose sum is σ = 13167932400. Its totient is φ = 12122853760.

The previous prime is 12640167593. The next prime is 12640167619. The reversal of 12640167611 is 11676104621.

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

It is not a de Polignac number, because 12640167611 - 2²² = 12635973307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12640167619) 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, 2610266 + ... + 2615103.

It is an arithmetic number, because the mean of its divisors is an integer number (1645991550).

Almost surely, 2^12640167611 is an apocalyptic number.

12640167611 is a deficient number, since it is larger than the sum of its proper divisors (527764789).

12640167611 is an equidigital number, since it uses as much as digits as its factorization.

12640167611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225469.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 12640167611 in words is "twelve billion, six hundred forty million, one hundred sixty-seven thousand, six hundred eleven".