1966124159 has 2 divisors, whose sum is σ = 1966124160. Its totient is φ = 1966124158.

The previous prime is 1966124141. The next prime is 1966124183. The reversal of 1966124159 is 9514216691.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1966124159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966126159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983062079 + 983062080.

It is an arithmetic number, because the mean of its divisors is an integer number (983062080).

Almost surely, 2^1966124159 is an apocalyptic number.

1966124159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966124159 is an equidigital number, since it uses as much as digits as its factorization.

1966124159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 1966124159 is about 44340.9986242980. The cubic root of 1966124159 is about 1252.7670242618.

The spelling of 1966124159 in words is "one billion, nine hundred sixty-six million, one hundred twenty-four thousand, one hundred fifty-nine".