1061566379 has 2 divisors, whose sum is σ = 1061566380. Its totient is φ = 1061566378.

The previous prime is 1061566321. The next prime is 1061566381. The reversal of 1061566379 is 9736651601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061566379 - 2²⁰ = 1060517803 is a prime.

It is a super-2 number, since 2×1061566379² = 2253846354046343282, which contains 22 as substring.

Together with 1061566381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1061566399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530783189 + 530783190.

It is an arithmetic number, because the mean of its divisors is an integer number (530783190).

Almost surely, 2^1061566379 is an apocalyptic number.

1061566379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061566379 is an equidigital number, since it uses as much as digits as its factorization.

1061566379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1061566379 is about 32581.6877862397. The cubic root of 1061566379 is about 1020.1148079793.

The spelling of 1061566379 in words is "one billion, sixty-one million, five hundred sixty-six thousand, three hundred seventy-nine".