12146717636 has 12 divisors (see below), whose sum is σ = 21259034412. Its totient is φ = 6072707808.

The previous prime is 12146717633. The next prime is 12146717641. The reversal of 12146717636 is 63671764121.

It can be written as a sum of positive squares in 2 ways, for example, as 12124212100 + 22505536 = 110110^2 + 4744^2 .

It is not an unprimeable number, because it can be changed into a prime (12146717633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119495 + ... + 196398.

It is an arithmetic number, because the mean of its divisors is an integer number (1771586201).

Almost surely, 2^12146717636 is an apocalyptic number.

It is an amenable number.

12146717636 is a deficient number, since it is larger than the sum of its proper divisors (9112316776).

12146717636 is a wasteful number, since it uses less digits than its factorization.

12146717636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325510 (or 325508 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The spelling of 12146717636 in words is "twelve billion, one hundred forty-six million, seven hundred seventeen thousand, six hundred thirty-six".