13665764994 has 16 divisors (see below), whose sum is σ = 31236034368. Its totient is φ = 3904504272.

The previous prime is 13665764977. The next prime is 13665765011. The reversal of 13665764994 is 49946756631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13665764977) and next prime (13665765011).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162687637 + ... + 162687720.

It is an arithmetic number, because the mean of its divisors is an integer number (1952252148).

Almost surely, 2^13665764994 is an apocalyptic number.

13665764994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13665764994 is an abundant number, since it is smaller than the sum of its proper divisors (17570269374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13665764994 is a wasteful number, since it uses less digits than its factorization.

13665764994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325375369.

The product of its digits is 29393280, while the sum is 60.

The spelling of 13665764994 in words is "thirteen billion, six hundred sixty-five million, seven hundred sixty-four thousand, nine hundred ninety-four".