1066644264 has 32 divisors (see below), whose sum is σ = 3047555520. Its totient is φ = 304755456.

The previous prime is 1066644223. The next prime is 1066644269. The reversal of 1066644264 is 4624466601.

It is a super-2 number, since 2×1066644264² = 2275459971848203392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066644269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3174369 + ... + 3174704.

It is an arithmetic number, because the mean of its divisors is an integer number (95236110).

Almost surely, 2^1066644264 is an apocalyptic number.

1066644264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1066644264 is an abundant number, since it is smaller than the sum of its proper divisors (1980911256).

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

1066644264 is a wasteful number, since it uses less digits than its factorization.

1066644264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349089 (or 6349085 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 1066644264 is about 32659.5202659194. The cubic root of 1066644264 is about 1021.7387567352.

The spelling of 1066644264 in words is "one billion, sixty-six million, six hundred forty-four thousand, two hundred sixty-four".