12261660262300 has 18 divisors (see below), whose sum is σ = 26607802769408. Its totient is φ = 4904664104880.

The previous prime is 12261660262289. The next prime is 12261660262301. The reversal of 12261660262300 is 326206616221.

It is a self number, because there is not a number n which added to its sum of digits gives 12261660262300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261660262301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61308301212 + ... + 61308301411.

Almost surely, 2^{12261660262300} is an apocalyptic number.

12261660262300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12261660262300 is an abundant number, since it is smaller than the sum of its proper divisors (14346142507108).

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

12261660262300 is a wasteful number, since it uses less digits than its factorization.

12261660262300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122616602637 (or 122616602630 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 12261660262300 its reverse (326206616221), we get a palindrome (12587866878521).

The spelling of 12261660262300 in words is "twelve trillion, two hundred sixty-one billion, six hundred sixty million, two hundred sixty-two thousand, three hundred".