11720650624 has 32 divisors (see below), whose sum is σ = 24102959040. Its totient is φ = 5671280640.

The previous prime is 11720650609. The next prime is 11720650649. The reversal of 11720650624 is 42605602711.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 11720650624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472929 + ... + 1480864.

It is an arithmetic number, because the mean of its divisors is an integer number (753217470).

Almost surely, 2^11720650624 is an apocalyptic number.

It is an amenable number.

11720650624 is an abundant number, since it is smaller than the sum of its proper divisors (12382308416).

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

11720650624 is an equidigital number, since it uses as much as digits as its factorization.

11720650624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953838 (or 2953826 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 11720650624 in words is "eleven billion, seven hundred twenty million, six hundred fifty thousand, six hundred twenty-four".