13206625641 has 20 divisors (see below), whose sum is σ = 21521909904. Its totient is φ = 8004015000.

The previous prime is 13206625631. The next prime is 13206625657. The reversal of 13206625641 is 14652660231.

13206625641 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 6 + 6 + 2 + 5 + 641 = 666.

13206625641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13206625641 - 2²⁹ = 12669754729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13206625596 and 13206625605.

It is not an unprimeable number, because it can be changed into a prime (13206625631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7410235 + ... + 7412016.

Almost surely, 2^13206625641 is an apocalyptic number.

13206625641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13206625641 is a deficient number, since it is larger than the sum of its proper divisors (8315284263).

13206625641 is a wasteful number, since it uses less digits than its factorization.

13206625641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14822274 (or 14822265 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13206625641 in words is "thirteen billion, two hundred six million, six hundred twenty-five thousand, six hundred forty-one".