11364635665 has 8 divisors (see below), whose sum is σ = 13737107880. Its totient is φ = 9025345152.

The previous prime is 11364635657. The next prime is 11364635669. The reversal of 11364635665 is 56653646311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 433305856 + 10931329809 = 20816^2 + 104553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11364635665 - 2³ = 11364635657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11364635669) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8294670 + ... + 8296039.

It is an arithmetic number, because the mean of its divisors is an integer number (1717138485).

Almost surely, 2^11364635665 is an apocalyptic number.

It is an amenable number.

11364635665 is a deficient number, since it is larger than the sum of its proper divisors (2372472215).

11364635665 is a wasteful number, since it uses less digits than its factorization.

11364635665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590851.

The product of its digits is 1166400, while the sum is 46.

The spelling of 11364635665 in words is "eleven billion, three hundred sixty-four million, six hundred thirty-five thousand, six hundred sixty-five".