11664516642435 has 64 divisors (see below), whose sum is σ = 20927219564160. Its totient is φ = 6164020961280.

The previous prime is 11664516642419. The next prime is 11664516642437. The reversal of 11664516642435 is 53424661546611.

11664516642435 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 4 + 5 + 166 + 42 + 435 = 666.

It is not a de Polignac number, because 11664516642435 - 2⁴ = 11664516642419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11664516642437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47488357 + ... + 47733353.

It is an arithmetic number, because the mean of its divisors is an integer number (326987805690).

Almost surely, 2^{11664516642435} is an apocalyptic number.

11664516642435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11664516642435 is a deficient number, since it is larger than the sum of its proper divisors (9262702921725).

11664516642435 is a wasteful number, since it uses less digits than its factorization.

11664516642435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248245 (or 248239 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 11664516642435 in words is "eleven trillion, six hundred sixty-four billion, five hundred sixteen million, six hundred forty-two thousand, four hundred thirty-five".