1363661564 has 12 divisors (see below), whose sum is σ = 2386778184. Its totient is φ = 681724944.

The previous prime is 1363661557. The next prime is 1363661591. The reversal of 1363661564 is 4651663631.

It is a super-2 number, since 2×1363661564² = 3719145722261852192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7322 + ... + 52734.

It is an arithmetic number, because the mean of its divisors is an integer number (198898182).

Almost surely, 2^1363661564 is an apocalyptic number.

It is an amenable number.

1363661564 is a deficient number, since it is larger than the sum of its proper divisors (1023116620).

1363661564 is a wasteful number, since it uses less digits than its factorization.

1363661564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52924 (or 52922 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 1363661564 is about 36927.7885067601. The cubic root of 1363661564 is about 1108.9250649232.

The spelling of 1363661564 in words is "one billion, three hundred sixty-three million, six hundred sixty-one thousand, five hundred sixty-four".