12044640171 has 16 divisors (see below), whose sum is σ = 16119603968. Its totient is φ = 7999754400.

The previous prime is 12044640103. The next prime is 12044640197. The reversal of 12044640171 is 17104644021.

It is not a de Polignac number, because 12044640171 - 2⁷ = 12044640043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12044640571) 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, 1725330 + ... + 1732296.

It is an arithmetic number, because the mean of its divisors is an integer number (1007475248).

Almost surely, 2^12044640171 is an apocalyptic number.

12044640171 is a deficient number, since it is larger than the sum of its proper divisors (4074963797).

12044640171 is a wasteful number, since it uses less digits than its factorization.

12044640171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 12044640171 in words is "twelve billion, forty-four million, six hundred forty thousand, one hundred seventy-one".