11964716820 has 96 divisors (see below), whose sum is σ = 42541228800. Its totient is φ = 2734791552.

The previous prime is 11964716783. The next prime is 11964716831. The reversal of 11964716820 is 2861746911.

11964716820 is a `hidden beast` number, since 11 + 96 + 471 + 6 + 82 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1578855 + ... + 1586414.

It is an arithmetic number, because the mean of its divisors is an integer number (443137800).

Almost surely, 2^11964716820 is an apocalyptic number.

11964716820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11964716820 is an abundant number, since it is smaller than the sum of its proper divisors (30576511980).

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

11964716820 is a wasteful number, since it uses less digits than its factorization.

11964716820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165294 (or 3165286 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 11964716820 in words is "eleven billion, nine hundred sixty-four million, seven hundred sixteen thousand, eight hundred twenty".