1363611664 has 20 divisors (see below), whose sum is σ = 2642894460. Its totient is φ = 681574400.

The previous prime is 1363611659. The next prime is 1363611673. The reversal of 1363611664 is 4661163631.

It can be written as a sum of positive squares in 2 ways, for example, as 1100912400 + 262699264 = 33180^2 + 16208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40464 + ... + 66064.

It is an arithmetic number, because the mean of its divisors is an integer number (132144723).

Almost surely, 2^1363611664 is an apocalyptic number.

It is an amenable number.

1363611664 is a deficient number, since it is larger than the sum of its proper divisors (1279282796).

1363611664 is a wasteful number, since it uses less digits than its factorization.

1363611664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28938 (or 28932 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 1363611664 is about 36927.1128576281. The cubic root of 1363611664 is about 1108.9115385867.

The spelling of 1363611664 in words is "one billion, three hundred sixty-three million, six hundred eleven thousand, six hundred sixty-four".