1244331666666 has 48 divisors (see below), whose sum is σ = 2941466812128. Its totient is φ = 377029274400.

The previous prime is 1244331666583. The next prime is 1244331666689. The reversal of 1244331666666 is 6666661334421.

It is a super-2 number, since 2×1244331666666² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1513125 + ... + 2185911.

It is an arithmetic number, because the mean of its divisors is an integer number (61280558586).

Almost surely, 2^{1244331666666} is an apocalyptic number.

1244331666666 is an abundant number, since it is smaller than the sum of its proper divisors (1697135145462).

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

1244331666666 is a wasteful number, since it uses less digits than its factorization.

1244331666666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682147 (or 682144 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 1244331666666 in words is "one trillion, two hundred forty-four billion, three hundred thirty-one million, six hundred sixty-six thousand, six hundred sixty-six".