12660001670 has 16 divisors (see below), whose sum is σ = 22793412960. Its totient is φ = 5062798464.

The previous prime is 12660001667. The next prime is 12660001709. The reversal of 12660001670 is 7610006621.

It is a congruent 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, 105410 + ... + 190869.

It is an arithmetic number, because the mean of its divisors is an integer number (1424588310).

Almost surely, 2^12660001670 is an apocalyptic number.

12660001670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12660001670 is a deficient number, since it is larger than the sum of its proper divisors (10133411290).

12660001670 is a wasteful number, since it uses less digits than its factorization.

12660001670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300559.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 12660001670 in words is "twelve billion, six hundred sixty million, one thousand, six hundred seventy".