12565150667 has 2 divisors, whose sum is σ = 12565150668. Its totient is φ = 12565150666.

The previous prime is 12565150643. The next prime is 12565150673. The reversal of 12565150667 is 76605156521.

It is a strong prime.

It is an emirp because it is prime and its reverse (76605156521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12565150667 - 2⁶ = 12565150603 is a prime.

It is a super-2 number, since 2×12565150667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12565150627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282575333 + 6282575334.

It is an arithmetic number, because the mean of its divisors is an integer number (6282575334).

Almost surely, 2^12565150667 is an apocalyptic number.

12565150667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12565150667 is an equidigital number, since it uses as much as digits as its factorization.

12565150667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 12565150667 in words is "twelve billion, five hundred sixty-five million, one hundred fifty thousand, six hundred sixty-seven".