1144644066 has 12 divisors (see below), whose sum is σ = 2480062182. Its totient is φ = 381548016.

The previous prime is 1144644049. The next prime is 1144644079. The reversal of 1144644066 is 6604464411.

1144644066 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 644 + 0 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 962798841 + 181845225 = 31029^2 + 13485^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1144644066.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31795651 + ... + 31795686.

Almost surely, 2^1144644066 is an apocalyptic number.

1144644066 is an abundant number, since it is smaller than the sum of its proper divisors (1335418116).

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

1144644066 is a wasteful number, since it uses less digits than its factorization.

1144644066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63591345 (or 63591342 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1144644066 is about 33832.5888161104. The cubic root of 1144644066 is about 1046.0605415691.

The spelling of 1144644066 in words is "one billion, one hundred forty-four million, six hundred forty-four thousand, sixty-six".