11982908816 has 10 divisors (see below), whose sum is σ = 23216885862. Its totient is φ = 5991454400.

The previous prime is 11982908783. The next prime is 11982908831. The reversal of 11982908816 is 61880928911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6146560000 + 5836348816 = 78400^2 + 76396^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374465885 + ... + 374465916.

Almost surely, 2^11982908816 is an apocalyptic number.

11982908816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11982908816 is a deficient number, since it is larger than the sum of its proper divisors (11233977046).

11982908816 is an equidigital number, since it uses as much as digits as its factorization.

11982908816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748931809 (or 748931803 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 53.

The spelling of 11982908816 in words is "eleven billion, nine hundred eighty-two million, nine hundred eight thousand, eight hundred sixteen".