1365564064 has 24 divisors (see below), whose sum is σ = 2781161460. Its totient is φ = 659237376.

The previous prime is 1365564007. The next prime is 1365564191. The reversal of 1365564064 is 4604655631.

It can be written as a sum of positive squares in 2 ways, for example, as 1163355664 + 202208400 = 34108^2 + 14220^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734829 + ... + 736684.

Almost surely, 2^1365564064 is an apocalyptic number.

It is an amenable number.

1365564064 is an abundant number, since it is smaller than the sum of its proper divisors (1415597396).

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

1365564064 is a wasteful number, since it uses less digits than its factorization.

1365564064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471552 (or 1471544 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 1365564064 is about 36953.5392621600. The cubic root of 1365564064 is about 1109.4405275150.

The spelling of 1365564064 in words is "one billion, three hundred sixty-five million, five hundred sixty-four thousand, sixty-four".