13646666334 has 16 divisors (see below), whose sum is σ = 31192380288. Its totient is φ = 3899047512.

The previous prime is 13646666321. The next prime is 13646666339. The reversal of 13646666334 is 43366664631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13646666339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162460272 + ... + 162460355.

It is an arithmetic number, because the mean of its divisors is an integer number (1949523768).

Almost surely, 2^13646666334 is an apocalyptic number.

13646666334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13646666334 is an abundant number, since it is smaller than the sum of its proper divisors (17545713954).

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

13646666334 is a wasteful number, since it uses less digits than its factorization.

13646666334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324920639.

The product of its digits is 3359232, while the sum is 48.

The spelling of 13646666334 in words is "thirteen billion, six hundred forty-six million, six hundred sixty-six thousand, three hundred thirty-four".