12044771520 has 112 divisors (see below), whose sum is σ = 38963864160. Its totient is φ = 3151323136.

The previous prime is 12044771509. The next prime is 12044771539. The reversal of 12044771520 is 2517744021.

It is a super-2 number, since 2×12044771520² (a number of 21 digits) contains 22 as substring.

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, 67485 + ... + 169244.

Almost surely, 2^12044771520 is an apocalyptic number.

12044771520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12044771520 is an abundant number, since it is smaller than the sum of its proper divisors (26919092640).

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

12044771520 is a wasteful number, since it uses less digits than its factorization.

12044771520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236802 (or 236792 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The spelling of 12044771520 in words is "twelve billion, forty-four million, seven hundred seventy-one thousand, five hundred twenty".