12026564140 has 24 divisors (see below), whose sum is σ = 26585037360. Its totient is φ = 4557434688.

The previous prime is 12026564087. The next prime is 12026564141. The reversal of 12026564140 is 4146562021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12026564141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15824047 + ... + 15824806.

It is an arithmetic number, because the mean of its divisors is an integer number (1107709890).

Almost surely, 2^12026564140 is an apocalyptic number.

12026564140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12026564140 is an abundant number, since it is smaller than the sum of its proper divisors (14558473220).

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

12026564140 is a wasteful number, since it uses less digits than its factorization.

12026564140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31648881 (or 31648879 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 12026564140 in words is "twelve billion, twenty-six million, five hundred sixty-four thousand, one hundred forty".