12806445661801 has 16 divisors (see below), whose sum is σ = 14109361099200. Its totient is φ = 11526651784000.

The previous prime is 12806445661771. The next prime is 12806445661813. The reversal of 12806445661801 is 10816654460821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12806445661801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12806445661001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49665315 + ... + 49922503.

It is an arithmetic number, because the mean of its divisors is an integer number (881835068700).

Almost surely, 2^{12806445661801} is an apocalyptic number.

12806445661801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12806445661801 is a deficient number, since it is larger than the sum of its proper divisors (1302915437399).

12806445661801 is a wasteful number, since it uses less digits than its factorization.

12806445661801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302120.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 12806445661801 in words is "twelve trillion, eight hundred six billion, four hundred forty-five million, six hundred sixty-one thousand, eight hundred one".