13311664021 has 8 divisors (see below), whose sum is σ = 13447445760. Its totient is φ = 13176550128.

The previous prime is 13311664019. The next prime is 13311664039. The reversal of 13311664021 is 12046611331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13311664021 - 2¹ = 13311664019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311664001) 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, 126846 + ... + 206671.

It is an arithmetic number, because the mean of its divisors is an integer number (1680930720).

Almost surely, 2^13311664021 is an apocalyptic number.

It is an amenable number.

13311664021 is a deficient number, since it is larger than the sum of its proper divisors (135781739).

13311664021 is a wasteful number, since it uses less digits than its factorization.

13311664021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333923.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 13311664021 in words is "thirteen billion, three hundred eleven million, six hundred sixty-four thousand, twenty-one".