12251317516 has 6 divisors (see below), whose sum is σ = 21439805660. Its totient is φ = 6125658756.

The previous prime is 12251317511. The next prime is 12251317537. The reversal of 12251317516 is 61571315221.

It is not an unprimeable number, because it can be changed into a prime (12251317511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531414686 + ... + 1531414693.

Almost surely, 2^12251317516 is an apocalyptic number.

It is an amenable number.

12251317516 is a deficient number, since it is larger than the sum of its proper divisors (9188488144).

12251317516 is a wasteful number, since it uses less digits than its factorization.

12251317516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062829383 (or 3062829381 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The spelling of 12251317516 in words is "twelve billion, two hundred fifty-one million, three hundred seventeen thousand, five hundred sixteen".