11627245561 has 2 divisors, whose sum is σ = 11627245562. Its totient is φ = 11627245560.

The previous prime is 11627245549. The next prime is 11627245571. The reversal of 11627245561 is 16554272611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11495913961 + 131331600 = 107219^2 + 11460^2 .

It is a cyclic number.

It is not a de Polignac number, because 11627245561 - 2⁷ = 11627245433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11627245501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5813622780 + 5813622781.

It is an arithmetic number, because the mean of its divisors is an integer number (5813622781).

Almost surely, 2^11627245561 is an apocalyptic number.

It is an amenable number.

11627245561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11627245561 is an equidigital number, since it uses as much as digits as its factorization.

11627245561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

The spelling of 11627245561 in words is "eleven billion, six hundred twenty-seven million, two hundred forty-five thousand, five hundred sixty-one".