12405666630 has 96 divisors (see below), whose sum is σ = 36140546304. Its totient is φ = 2712287424.

The previous prime is 12405666613. The next prime is 12405666659. The reversal of 12405666630 is 3666650421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149652 + ... + 217271.

It is an arithmetic number, because the mean of its divisors is an integer number (376464024).

Almost surely, 2^12405666630 is an apocalyptic number.

12405666630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12405666630 is an abundant number, since it is smaller than the sum of its proper divisors (23734879674).

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

12405666630 is a wasteful number, since it uses less digits than its factorization.

12405666630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366970 (or 366963 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 12405666630 in words is "twelve billion, four hundred five million, six hundred sixty-six thousand, six hundred thirty".