1065044664 has 24 divisors (see below), whose sum is σ = 2884496160. Its totient is φ = 355014864.

The previous prime is 1065044657. The next prime is 1065044681. The reversal of 1065044664 is 4664405601.

1065044664 is a `hidden beast` number, since 106 + 50 + 446 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1065044664² = 2268640272629745792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7396072 + ... + 7396215.

It is an arithmetic number, because the mean of its divisors is an integer number (120187340).

Almost surely, 2^1065044664 is an apocalyptic number.

It is an amenable number.

1065044664 is an abundant number, since it is smaller than the sum of its proper divisors (1819451496).

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

1065044664 is a wasteful number, since it uses less digits than its factorization.

1065044664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14792299 (or 14792292 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1065044664 is about 32635.0220468747. The cubic root of 1065044664 is about 1021.2277488164.

The spelling of 1065044664 in words is "one billion, sixty-five million, forty-four thousand, six hundred sixty-four".