11565725707 has 2 divisors, whose sum is σ = 11565725708. Its totient is φ = 11565725706.

The previous prime is 11565725687. The next prime is 11565725729. The reversal of 11565725707 is 70752756511.

It is a weak prime.

It is an emirp because it is prime and its reverse (70752756511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11565725707 - 2⁷ = 11565725579 is a prime.

It is a super-2 number, since 2×11565725707² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11565725797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782862853 + 5782862854.

It is an arithmetic number, because the mean of its divisors is an integer number (5782862854).

Almost surely, 2^11565725707 is an apocalyptic number.

11565725707 is a deficient number, since it is larger than the sum of its proper divisors (1).

11565725707 is an equidigital number, since it uses as much as digits as its factorization.

11565725707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 514500, while the sum is 46.

The spelling of 11565725707 in words is "eleven billion, five hundred sixty-five million, seven hundred twenty-five thousand, seven hundred seven".