1161951266579 has 2 divisors, whose sum is σ = 1161951266580. Its totient is φ = 1161951266578.

The previous prime is 1161951266573. The next prime is 1161951266603. The reversal of 1161951266579 is 9756621591611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161951266579 - 2³⁶ = 1093231789843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161951266573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580975633289 + 580975633290.

It is an arithmetic number, because the mean of its divisors is an integer number (580975633290).

Almost surely, 2^{1161951266579} is an apocalyptic number.

1161951266579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161951266579 is an equidigital number, since it uses as much as digits as its factorization.

1161951266579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6123600, while the sum is 59.

The spelling of 1161951266579 in words is "one trillion, one hundred sixty-one billion, nine hundred fifty-one million, two hundred sixty-six thousand, five hundred seventy-nine".