14866940691 has 16 divisors (see below), whose sum is σ = 23320692000. Its totient is φ = 9328276224.

The previous prime is 14866940681. The next prime is 14866940731. The reversal of 14866940691 is 19604966841.

It is a happy number.

14866940691 is a `hidden beast` number, since 1 + 486 + 69 + 40 + 69 + 1 = 666.

It is not a de Polignac number, because 14866940691 - 2⁷ = 14866940563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14866940651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16194466 + ... + 16195383.

It is an arithmetic number, because the mean of its divisors is an integer number (1457543250).

Almost surely, 2^14866940691 is an apocalyptic number.

14866940691 is a deficient number, since it is larger than the sum of its proper divisors (8453751309).

14866940691 is a wasteful number, since it uses less digits than its factorization.

14866940691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32389875 (or 32389869 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 14866940691 in words is "fourteen billion, eight hundred sixty-six million, nine hundred forty thousand, six hundred ninety-one".