11630720664 has 48 divisors (see below), whose sum is σ = 32666535720. Its totient is φ = 3876906240.

The previous prime is 11630720641. The next prime is 11630720671. The reversal of 11630720664 is 46602703611.

It is a happy number.

11630720664 is a `hidden beast` number, since 11 + 630 + 7 + 2 + 0 + 6 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2989497 + ... + 2993384.

Almost surely, 2^11630720664 is an apocalyptic number.

It is an amenable number.

11630720664 is an abundant number, since it is smaller than the sum of its proper divisors (21035815056).

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

11630720664 is an equidigital number, since it uses as much as digits as its factorization.

11630720664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982902 (or 5982886 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 11630720664 in words is "eleven billion, six hundred thirty million, seven hundred twenty thousand, six hundred sixty-four".