1066644330 has 16 divisors (see below), whose sum is σ = 2559946464. Its totient is φ = 284438480.

The previous prime is 1066644323. The next prime is 1066644407. The reversal of 1066644330 is 334466601.

It is a super-2 number, since 2×1066644330² = 2275460253442297800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066644291 and 1066644300.

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 7 ways as a sum of consecutive naturals, for example, 17777376 + ... + 17777435.

It is an arithmetic number, because the mean of its divisors is an integer number (159996654).

Almost surely, 2^1066644330 is an apocalyptic number.

1066644330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066644330 is an abundant number, since it is smaller than the sum of its proper divisors (1493302134).

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

1066644330 is a wasteful number, since it uses less digits than its factorization.

1066644330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35554821.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1066644330 is about 32659.5212763445. The cubic root of 1066644330 is about 1021.7387778090.

The spelling of 1066644330 in words is "one billion, sixty-six million, six hundred forty-four thousand, three hundred thirty".