1361446664 has 16 divisors (see below), whose sum is σ = 2554051500. Its totient is φ = 680366272.

The previous prime is 1361446661. The next prime is 1361446703. The reversal of 1361446664 is 4666441631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1360872100 + 574564 = 36890^2 + 758^2 .

It is not an unprimeable number, because it can be changed into a prime (1361446661) 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, 28067 + ... + 59250.

Almost surely, 2^1361446664 is an apocalyptic number.

It is an amenable number.

1361446664 is a deficient number, since it is larger than the sum of its proper divisors (1192604836).

1361446664 is a wasteful number, since it uses less digits than its factorization.

1361446664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89272 (or 89268 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 1361446664 is about 36897.7867086903. The cubic root of 1361446664 is about 1108.3243564627.

The spelling of 1361446664 in words is "one billion, three hundred sixty-one million, four hundred forty-six thousand, six hundred sixty-four".