12442642557158 has 64 divisors (see below), whose sum is σ = 21097176952320. Its totient is φ = 5451809932800.

The previous prime is 12442642557131. The next prime is 12442642557167. The reversal of 12442642557158 is 85175524624421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1487816285 + ... + 1487824647.

It is an arithmetic number, because the mean of its divisors is an integer number (329643389880).

Almost surely, 2^{12442642557158} is an apocalyptic number.

12442642557158 is a deficient number, since it is larger than the sum of its proper divisors (8654534395162).

12442642557158 is a wasteful number, since it uses less digits than its factorization.

12442642557158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933.

The product of its digits is 21504000, while the sum is 56.

The spelling of 12442642557158 in words is "twelve trillion, four hundred forty-two billion, six hundred forty-two million, five hundred fifty-seven thousand, one hundred fifty-eight".