1141891597566 has 24 divisors (see below), whose sum is σ = 2516032335960. Its totient is φ = 374179167216.

The previous prime is 1141891597559. The next prime is 1141891597571. The reversal of 1141891597566 is 6657951981411.

1141891597566 is a `hidden beast` number, since 1 + 1 + 4 + 18 + 9 + 1 + 59 + 7 + 566 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537612685 + ... + 537614808.

It is an arithmetic number, because the mean of its divisors is an integer number (104834680665).

Almost surely, 2^{1141891597566} is an apocalyptic number.

1141891597566 is an abundant number, since it is smaller than the sum of its proper divisors (1374140738394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1141891597566 is a wasteful number, since it uses less digits than its factorization.

1141891597566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075227560 (or 1075227557 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 63.

The spelling of 1141891597566 in words is "one trillion, one hundred forty-one billion, eight hundred ninety-one million, five hundred ninety-seven thousand, five hundred sixty-six".