1440055681266 has 16 divisors (see below), whose sum is σ = 2957952210624. Its totient is φ = 467045085744.

The previous prime is 1440055681247. The next prime is 1440055681279. The reversal of 1440055681266 is 6621865500441.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3243368430 + ... + 3243368873.

It is an arithmetic number, because the mean of its divisors is an integer number (184872013164).

Almost surely, 2^{1440055681266} is an apocalyptic number.

1440055681266 is an abundant number, since it is smaller than the sum of its proper divisors (1517896529358).

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

1440055681266 is a wasteful number, since it uses less digits than its factorization.

1440055681266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486737345.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 1440055681266 in words is "one trillion, four hundred forty billion, fifty-five million, six hundred eighty-one thousand, two hundred sixty-six".