13124414465666 has 16 divisors (see below), whose sum is σ = 23022228698304. Its totient is φ = 5493940938864.

The previous prime is 13124414465629. The next prime is 13124414465713. The reversal of 13124414465666 is 66656441442131.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900675865 + ... + 10900677068.

It is an arithmetic number, because the mean of its divisors is an integer number (1438889293644).

Almost surely, 2^{13124414465666} is an apocalyptic number.

13124414465666 is a deficient number, since it is larger than the sum of its proper divisors (9897814232638).

13124414465666 is a wasteful number, since it uses less digits than its factorization.

13124414465666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21801352985.

The product of its digits is 9953280, while the sum is 53.

The spelling of 13124414465666 in words is "thirteen trillion, one hundred twenty-four billion, four hundred fourteen million, four hundred sixty-five thousand, six hundred sixty-six".