11664478907802 has 112 divisors (see below), whose sum is σ = 31744228162752. Its totient is φ = 3136666550400.

The previous prime is 11664478907801. The next prime is 11664478907821. The reversal of 11664478907802 is 20870987446611.

11664478907802 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 4 + 478 + 90 + 78 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 11664478907802.

It is not an unprimeable number, because it can be changed into a prime (11664478907801) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 33441324 + ... + 33788327.

It is an arithmetic number, because the mean of its divisors is an integer number (283430608596).

Almost surely, 2^{11664478907802} is an apocalyptic number.

11664478907802 is an abundant number, since it is smaller than the sum of its proper divisors (20079749254950).

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

11664478907802 is an equidigital number, since it uses as much as digits as its factorization.

11664478907802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67229695 (or 67229680 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 11664478907802 in words is "eleven trillion, six hundred sixty-four billion, four hundred seventy-eight million, nine hundred seven thousand, eight hundred two".