12666235308670 has 8 divisors (see below), whose sum is σ = 22799223555624. Its totient is φ = 5066494123464.

The previous prime is 12666235308593. The next prime is 12666235308673. The reversal of 12666235308670 is 7680353266621.

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

It is a super-2 number, since 2×12666235308670² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666235308673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633311765424 + ... + 633311765443.

It is an arithmetic number, because the mean of its divisors is an integer number (2849902944453).

Almost surely, 2^{12666235308670} is an apocalyptic number.

12666235308670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12666235308670 is a deficient number, since it is larger than the sum of its proper divisors (10132988246954).

12666235308670 is a wasteful number, since it uses less digits than its factorization.

12666235308670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266623530874.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 12666235308670 in words is "twelve trillion, six hundred sixty-six billion, two hundred thirty-five million, three hundred eight thousand, six hundred seventy".