11166051601 has 2 divisors, whose sum is σ = 11166051602. Its totient is φ = 11166051600.

The previous prime is 11166051599. The next prime is 11166051691. The reversal of 11166051601 is 10615066111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6045218001 + 5120833600 = 77751^2 + 71560^2 .

It is a cyclic number.

It is not a de Polignac number, because 11166051601 - 2¹ = 11166051599 is a prime.

Together with 11166051599, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11166051601.

It is not a weakly prime, because it can be changed into another prime (11166051691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583025800 + 5583025801.

It is an arithmetic number, because the mean of its divisors is an integer number (5583025801).

Almost surely, 2^11166051601 is an apocalyptic number.

It is an amenable number.

11166051601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166051601 is an equidigital number, since it uses as much as digits as its factorization.

11166051601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 11166051601 in words is "eleven billion, one hundred sixty-six million, fifty-one thousand, six hundred one".