12505662050666 has 8 divisors (see below), whose sum is σ = 19038470584800. Its totient is φ = 6159505189068.

The previous prime is 12505662050639. The next prime is 12505662050677. The reversal of 12505662050666 is 66605026650521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46662917966 + ... + 46662918233.

It is an arithmetic number, because the mean of its divisors is an integer number (2379808823100).

Almost surely, 2^{12505662050666} is an apocalyptic number.

12505662050666 is a deficient number, since it is larger than the sum of its proper divisors (6532808534134).

12505662050666 is an equidigital number, since it uses as much as digits as its factorization.

12505662050666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93325836268.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 12505662050666 in words is "twelve trillion, five hundred five billion, six hundred sixty-two million, fifty thousand, six hundred sixty-six".