1209341013966 has 24 divisors (see below), whose sum is σ = 2629497669240. Its totient is φ = 401689239696.

The previous prime is 1209341013929. The next prime is 1209341013989. The reversal of 1209341013966 is 6693101439021.

1209341013966 is a `hidden beast` number, since 1 + 209 + 341 + 0 + 13 + 96 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118697401 + ... + 118707588.

It is an arithmetic number, because the mean of its divisors is an integer number (109562402885).

Almost surely, 2^{1209341013966} is an apocalyptic number.

1209341013966 is an abundant number, since it is smaller than the sum of its proper divisors (1420156655274).

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

1209341013966 is a wasteful number, since it uses less digits than its factorization.

1209341013966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237405280 (or 237405277 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 1209341013966 in words is "one trillion, two hundred nine billion, three hundred forty-one million, thirteen thousand, nine hundred sixty-six".