12145127660 has 24 divisors (see below), whose sum is σ = 25513889856. Its totient is φ = 4856313600.

The previous prime is 12145127653. The next prime is 12145127663. The reversal of 12145127660 is 6672154121.

It is a self number, because there is not a number n which added to its sum of digits gives 12145127660.

It is not an unprimeable number, because it can be changed into a prime (12145127663) 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, 50516 + ... + 163835.

It is an arithmetic number, because the mean of its divisors is an integer number (1063078744).

Almost surely, 2^12145127660 is an apocalyptic number.

12145127660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12145127660 is an abundant number, since it is smaller than the sum of its proper divisors (13368762196).

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

12145127660 is a wasteful number, since it uses less digits than its factorization.

12145127660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217193 (or 217191 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 12145127660 in words is "twelve billion, one hundred forty-five million, one hundred twenty-seven thousand, six hundred sixty".