12055746542640 has 80 divisors (see below), whose sum is σ = 37404460220256. Its totient is φ = 3212143513600.

The previous prime is 12055746542639. The next prime is 12055746542659. The reversal of 12055746542640 is 4624564755021.

It is a tau number, because it is divible by the number of its divisors (80).

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, 20983401 + ... + 21550280.

Almost surely, 2^{12055746542640} is an apocalyptic number.

12055746542640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055746542640 is an abundant number, since it is smaller than the sum of its proper divisors (25348713677616).

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

12055746542640 is a wasteful number, since it uses less digits than its factorization.

12055746542640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42534878 (or 42534872 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 51.

The spelling of 12055746542640 in words is "twelve trillion, fifty-five billion, seven hundred forty-six million, five hundred forty-two thousand, six hundred forty".