12169297736 has 8 divisors (see below), whose sum is σ = 22817433270. Its totient is φ = 6084648864.

The previous prime is 12169297729. The next prime is 12169297741. The reversal of 12169297736 is 63779296121.

It can be written as a sum of positive squares in only one way, i.e., 9961237636 + 2208060100 = 99806^2 + 46990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760581101 + ... + 760581116.

Almost surely, 2^12169297736 is an apocalyptic number.

It is an amenable number.

12169297736 is a deficient number, since it is larger than the sum of its proper divisors (10648135534).

12169297736 is a wasteful number, since it uses less digits than its factorization.

12169297736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521162223 (or 1521162219 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The spelling of 12169297736 in words is "twelve billion, one hundred sixty-nine million, two hundred ninety-seven thousand, seven hundred thirty-six".