12444226011615 has 16 divisors (see below), whose sum is σ = 19910806167168. Its totient is φ = 6636905690016.

The previous prime is 12444226011587. The next prime is 12444226011629. The reversal of 12444226011615 is 51611062244421.

It is not a de Polignac number, because 12444226011615 - 2⁶ = 12444226011551 is a prime.

It is a super-2 number, since 2×12444226011615² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 10695712 + ... + 11801978.

It is an arithmetic number, because the mean of its divisors is an integer number (1244425385448).

Almost surely, 2^{12444226011615} is an apocalyptic number.

12444226011615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12444226011615 is a deficient number, since it is larger than the sum of its proper divisors (7466580155553).

12444226011615 is a wasteful number, since it uses less digits than its factorization.

12444226011615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856198.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 12444226011615 in words is "twelve trillion, four hundred forty-four billion, two hundred twenty-six million, eleven thousand, six hundred fifteen".