13664706019 has 8 divisors (see below), whose sum is σ = 14400002592. Its totient is φ = 12941174400.

The previous prime is 13664705983. The next prime is 13664706043. The reversal of 13664706019 is 91060746631.

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 13664706019 - 2²¹ = 13662608867 is a prime.

It is a super-2 number, since 2×13664706019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13664706049) 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, 2938854 + ... + 2943499.

It is an arithmetic number, because the mean of its divisors is an integer number (1800000324).

Almost surely, 2^13664706019 is an apocalyptic number.

13664706019 is a deficient number, since it is larger than the sum of its proper divisors (735296573).

13664706019 is a wasteful number, since it uses less digits than its factorization.

13664706019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882477.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 13664706019 in words is "thirteen billion, six hundred sixty-four million, seven hundred six thousand, nineteen".