12011580370944 has 2496 divisors, whose sum is σ = 49948691788800. Its totient is φ = 2774815211520.

The previous prime is 12011580370931. The next prime is 12011580370949. The reversal of 12011580370944 is 44907308511021.

12011580370944 is a `hidden beast` number, since 1 + 2 + 0 + 115 + 80 + 370 + 94 + 4 = 666.

It is a super-2 number, since 2×12011580370944² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12011580370944.

It is not an unprimeable number, because it can be changed into a prime (12011580370949) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 30255869754 + ... + 30255870150.

Almost surely, 2^{12011580370944} is an apocalyptic number.

12011580370944 is a gapful number since it is divisible by the number (14) 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 12011580370944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24974345894400).

12011580370944 is an abundant number, since it is smaller than the sum of its proper divisors (37937111417856).

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

12011580370944 is a wasteful number, since it uses less digits than its factorization.

12011580370944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

Adding to 12011580370944 its reverse (44907308511021), we get a palindrome (56918888881965).

The spelling of 12011580370944 in words is "twelve trillion, eleven billion, five hundred eighty million, three hundred seventy thousand, nine hundred forty-four".