12666114651 has 32 divisors (see below), whose sum is σ = 18353875968. Its totient is φ = 7747850880.

The previous prime is 12666114619. The next prime is 12666114677. The reversal of 12666114651 is 15641166621.

It is a happy number.

It is not a de Polignac number, because 12666114651 - 2⁵ = 12666114619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12666114611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146325 + ... + 216201.

It is an arithmetic number, because the mean of its divisors is an integer number (573558624).

Almost surely, 2^12666114651 is an apocalyptic number.

12666114651 is a deficient number, since it is larger than the sum of its proper divisors (5687761317).

12666114651 is a wasteful number, since it uses less digits than its factorization.

12666114651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70011.

The product of its digits is 51840, while the sum is 39.

The spelling of 12666114651 in words is "twelve billion, six hundred sixty-six million, one hundred fourteen thousand, six hundred fifty-one".