11999378496 has 112 divisors (see below), whose sum is σ = 36545438720. Its totient is φ = 3403676160.

The previous prime is 11999378483. The next prime is 11999378509. The reversal of 11999378496 is 69487399911.

It is an interprime number because it is at equal distance from previous prime (11999378483) and next prime (11999378509).

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154701 + ... + 218931.

It is an arithmetic number, because the mean of its divisors is an integer number (326298560).

Almost surely, 2^11999378496 is an apocalyptic number.

11999378496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11999378496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18272719360).

11999378496 is an abundant number, since it is smaller than the sum of its proper divisors (24546060224).

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

11999378496 is a wasteful number, since it uses less digits than its factorization.

11999378496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64392 (or 64382 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 66.

The spelling of 11999378496 in words is "eleven billion, nine hundred ninety-nine million, three hundred seventy-eight thousand, four hundred ninety-six".