11664570737 has 2 divisors, whose sum is σ = 11664570738. Its totient is φ = 11664570736.

The previous prime is 11664570721. The next prime is 11664570803. The reversal of 11664570737 is 73707546611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9200838241 + 2463732496 = 95921^2 + 49636^2 .

It is an emirp because it is prime and its reverse (73707546611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11664570737 - 2⁴ = 11664570721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11664570691 and 11664570700.

It is not a weakly prime, because it can be changed into another prime (11664570707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832285368 + 5832285369.

It is an arithmetic number, because the mean of its divisors is an integer number (5832285369).

Almost surely, 2^11664570737 is an apocalyptic number.

It is an amenable number.

11664570737 is a deficient number, since it is larger than the sum of its proper divisors (1).

11664570737 is an equidigital number, since it uses as much as digits as its factorization.

11664570737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 11664570737 in words is "eleven billion, six hundred sixty-four million, five hundred seventy thousand, seven hundred thirty-seven".