1141980265866 has 32 divisors (see below), whose sum is σ = 2492419046400. Its totient is φ = 345939940080.

The previous prime is 1141980265849. The next prime is 1141980265901. The reversal of 1141980265866 is 6685620891411.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2666386 + ... + 3064893.

It is an arithmetic number, because the mean of its divisors is an integer number (77888095200).

Almost surely, 2^{1141980265866} is an apocalyptic number.

1141980265866 is an abundant number, since it is smaller than the sum of its proper divisors (1350438780534).

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

1141980265866 is a wasteful number, since it uses less digits than its factorization.

1141980265866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734314.

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 1141980265866 in words is "one trillion, one hundred forty-one billion, nine hundred eighty million, two hundred sixty-five thousand, eight hundred sixty-six".