12156401144643 has 16 divisors (see below), whose sum is σ = 19162799834880. Its totient is φ = 6706979941536.

The previous prime is 12156401144627. The next prime is 12156401144681. The reversal of 12156401144643 is 34644110465121.

12156401144643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12156401144643 - 2⁴ = 12156401144627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12156401144595 and 12156401144604.

It is not an unprimeable number, because it can be changed into a prime (12156401144243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9980624305 + ... + 9980625522.

It is an arithmetic number, because the mean of its divisors is an integer number (1197674989680).

Almost surely, 2^{12156401144643} is an apocalyptic number.

12156401144643 is a deficient number, since it is larger than the sum of its proper divisors (7006398690237).

12156401144643 is a wasteful number, since it uses less digits than its factorization.

12156401144643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19961249866.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 12156401144643 in words is "twelve trillion, one hundred fifty-six billion, four hundred one million, one hundred forty-four thousand, six hundred forty-three".