11801065597 has 2 divisors, whose sum is σ = 11801065598. Its totient is φ = 11801065596.

The previous prime is 11801065553. The next prime is 11801065637. The reversal of 11801065597 is 79556010811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10492724356 + 1308341241 = 102434^2 + 36171^2 .

It is a cyclic number.

It is not a de Polignac number, because 11801065597 - 2²³ = 11792676989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11801065537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900532798 + 5900532799.

It is an arithmetic number, because the mean of its divisors is an integer number (5900532799).

Almost surely, 2^11801065597 is an apocalyptic number.

It is an amenable number.

11801065597 is a deficient number, since it is larger than the sum of its proper divisors (1).

11801065597 is an equidigital number, since it uses as much as digits as its factorization.

11801065597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 11801065597 in words is "eleven billion, eight hundred one million, sixty-five thousand, five hundred ninety-seven".