1144257511664 has 20 divisors (see below), whose sum is σ = 2347410631104. Its totient is φ = 538474123008.

The previous prime is 1144257511633. The next prime is 1144257511673. The reversal of 1144257511664 is 4661157524411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103414272 + ... + 2103414815.

Almost surely, 2^{1144257511664} is an apocalyptic number.

It is an amenable number.

1144257511664 is an abundant number, since it is smaller than the sum of its proper divisors (1203153119440).

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

1144257511664 is a wasteful number, since it uses less digits than its factorization.

1144257511664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206829112 (or 4206829106 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The spelling of 1144257511664 in words is "one trillion, one hundred forty-four billion, two hundred fifty-seven million, five hundred eleven thousand, six hundred sixty-four".