13566901247 has 2 divisors, whose sum is σ = 13566901248. Its totient is φ = 13566901246.

The previous prime is 13566901241. The next prime is 13566901297. The reversal of 13566901247 is 74210966531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13566901247 - 2²⁴ = 13550124031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13566901198 and 13566901207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13566901241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6783450623 + 6783450624.

It is an arithmetic number, because the mean of its divisors is an integer number (6783450624).

Almost surely, 2^13566901247 is an apocalyptic number.

13566901247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13566901247 is an equidigital number, since it uses as much as digits as its factorization.

13566901247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 13566901247 in words is "thirteen billion, five hundred sixty-six million, nine hundred one thousand, two hundred forty-seven".