12640151275 has 12 divisors (see below), whose sum is σ = 15677861632. Its totient is φ = 10109492640.

The previous prime is 12640151273. The next prime is 12640151281. The reversal of 12640151275 is 57215104621.

It is not a de Polignac number, because 12640151275 - 2¹ = 12640151273 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 12640151275.

It is not an unprimeable number, because it can be changed into a prime (12640151273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35449 + ... + 162901.

Almost surely, 2^12640151275 is an apocalyptic number.

12640151275 is a deficient number, since it is larger than the sum of its proper divisors (3037710357).

12640151275 is a wasteful number, since it uses less digits than its factorization.

12640151275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131430 (or 131425 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

Adding to 12640151275 its reverse (57215104621), we get a palindrome (69855255896).

The spelling of 12640151275 in words is "twelve billion, six hundred forty million, one hundred fifty-one thousand, two hundred seventy-five".