13666470040 has 16 divisors (see below), whose sum is σ = 30749557680. Its totient is φ = 5466588000.

The previous prime is 13666470011. The next prime is 13666470047. The reversal of 13666470040 is 4007466631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666470047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170830836 + ... + 170830915.

It is an arithmetic number, because the mean of its divisors is an integer number (1921847355).

Almost surely, 2^13666470040 is an apocalyptic number.

13666470040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13666470040 is an abundant number, since it is smaller than the sum of its proper divisors (17083087640).

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

13666470040 is a wasteful number, since it uses less digits than its factorization.

13666470040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341661762 (or 341661758 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 13666470040 in words is "thirteen billion, six hundred sixty-six million, four hundred seventy thousand, forty".