13664031464 has 32 divisors (see below), whose sum is σ = 25737733800. Its totient is φ = 6800682240.

The previous prime is 13664031457. The next prime is 13664031467. The reversal of 13664031464 is 46413046631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12084604900 + 1579426564 = 109930^2 + 39742^2 .

It is not an unprimeable number, because it can be changed into a prime (13664031467) 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, 3486434 + ... + 3490350.

Almost surely, 2^13664031464 is an apocalyptic number.

It is an amenable number.

13664031464 is a deficient number, since it is larger than the sum of its proper divisors (12073702336).

13664031464 is a wasteful number, since it uses less digits than its factorization.

13664031464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5809 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 13664031464 in words is "thirteen billion, six hundred sixty-four million, thirty-one thousand, four hundred sixty-four".