11736564551 has 2 divisors, whose sum is σ = 11736564552. Its totient is φ = 11736564550.

The previous prime is 11736564547. The next prime is 11736564559. The reversal of 11736564551 is 15546563711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11736564551 - 2² = 11736564547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11736564559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5868282275 + 5868282276.

It is an arithmetic number, because the mean of its divisors is an integer number (5868282276).

Almost surely, 2^11736564551 is an apocalyptic number.

11736564551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11736564551 is an equidigital number, since it uses as much as digits as its factorization.

11736564551 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11736564551 in words is "eleven billion, seven hundred thirty-six million, five hundred sixty-four thousand, five hundred fifty-one".