3205166491 has 2 divisors, whose sum is σ = 3205166492. Its totient is φ = 3205166490.

The previous prime is 3205166479. The next prime is 3205166501. The reversal of 3205166491 is 1946615023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3205166491 - 2¹⁷ = 3205035419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3205166491.

It is not a weakly prime, because it can be changed into another prime (3205169491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602583245 + 1602583246.

It is an arithmetic number, because the mean of its divisors is an integer number (1602583246).

Almost surely, 2^3205166491 is an apocalyptic number.

3205166491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205166491 is an equidigital number, since it uses as much as digits as its factorization.

3205166491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 3205166491 is about 56614.1898378843. The cubic root of 3205166491 is about 1474.4052361801.

The spelling of 3205166491 in words is "three billion, two hundred five million, one hundred sixty-six thousand, four hundred ninety-one".