13667466321 has 12 divisors (see below), whose sum is σ = 19748074372. Its totient is φ = 9108792576.

The previous prime is 13667466299. The next prime is 13667466331. The reversal of 13667466321 is 12366476631.

13667466321 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 7 + 4 + 6 + 632 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5996334096 + 7671132225 = 77436^2 + 87585^2 .

It is not a de Polignac number, because 13667466321 - 2¹⁰ = 13667465297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13667466331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207076 + ... + 264981.

Almost surely, 2^13667466321 is an apocalyptic number.

It is an amenable number.

13667466321 is a deficient number, since it is larger than the sum of its proper divisors (6080608051).

13667466321 is a wasteful number, since it uses less digits than its factorization.

13667466321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475280 (or 475277 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 13667466321 in words is "thirteen billion, six hundred sixty-seven million, four hundred sixty-six thousand, three hundred twenty-one".