12660738498 has 12 divisors (see below), whose sum is σ = 27431600118. Its totient is φ = 4220246160.

The previous prime is 12660738487. The next prime is 12660738533. The reversal of 12660738498 is 89483706621.

12660738498 is a `hidden beast` number, since 1 + 26 + 60 + 73 + 8 + 498 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9100587609 + 3560150889 = 95397^2 + 59667^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351687163 + ... + 351687198.

Almost surely, 2^12660738498 is an apocalyptic number.

12660738498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12660738498 is an abundant number, since it is smaller than the sum of its proper divisors (14770861620).

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

12660738498 is a wasteful number, since it uses less digits than its factorization.

12660738498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703374369 (or 703374366 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 12660738498 in words is "twelve billion, six hundred sixty million, seven hundred thirty-eight thousand, four hundred ninety-eight".