1338579532664 has 16 divisors (see below), whose sum is σ = 2738003589720. Its totient is φ = 608445242080.

The previous prime is 1338579532663. The next prime is 1338579532673. The reversal of 1338579532664 is 4662359758331.

It is a junction number, because it is equal to n+sod(n) for n = 1338579532597 and 1338579532606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338579532663) 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, 7605565439 + ... + 7605565614.

Almost surely, 2^{1338579532664} is an apocalyptic number.

It is an amenable number.

1338579532664 is an abundant number, since it is smaller than the sum of its proper divisors (1399424057056).

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

1338579532664 is a wasteful number, since it uses less digits than its factorization.

1338579532664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15211131070 (or 15211131066 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 62.

The spelling of 1338579532664 in words is "one trillion, three hundred thirty-eight billion, five hundred seventy-nine million, five hundred thirty-two thousand, six hundred sixty-four".