12443542654664 has 32 divisors (see below), whose sum is σ = 25520938755840. Its totient is φ = 5640991780800.

The previous prime is 12443542654649. The next prime is 12443542654687. The reversal of 12443542654664 is 46645624534421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189516632 + ... + 189582279.

It is an arithmetic number, because the mean of its divisors is an integer number (797529336120).

Almost surely, 2^{12443542654664} is an apocalyptic number.

It is an amenable number.

12443542654664 is an abundant number, since it is smaller than the sum of its proper divisors (13077396101176).

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

12443542654664 is a wasteful number, since it uses less digits than its factorization.

12443542654664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379099301 (or 379099297 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 56.

The spelling of 12443542654664 in words is "twelve trillion, four hundred forty-three billion, five hundred forty-two million, six hundred fifty-four thousand, six hundred sixty-four".