11660166559 has 2 divisors, whose sum is σ = 11660166560. Its totient is φ = 11660166558.

The previous prime is 11660166541. The next prime is 11660166577. The reversal of 11660166559 is 95566106611.

It is a balanced prime because it is at equal distance from previous prime (11660166541) and next prime (11660166577).

It is a cyclic number.

It is not a de Polignac number, because 11660166559 - 2⁵ = 11660166527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660166599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830083279 + 5830083280.

It is an arithmetic number, because the mean of its divisors is an integer number (5830083280).

Almost surely, 2^11660166559 is an apocalyptic number.

11660166559 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660166559 is an equidigital number, since it uses as much as digits as its factorization.

11660166559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 11660166559 in words is "eleven billion, six hundred sixty million, one hundred sixty-six thousand, five hundred fifty-nine".