1066640032 has 24 divisors (see below), whose sum is σ = 2107438452. Its totient is φ = 531417600.

The previous prime is 1066640023. The next prime is 1066640041. The reversal of 1066640032 is 2300466601.

1066640032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1066640023) and next prime (1066640041).

It can be written as a sum of positive squares in 2 ways, for example, as 1044323856 + 22316176 = 32316^2 + 4724^2 .

It is a super-2 number, since 2×1066640032² = 2275441915729922048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50319 + ... + 68302.

Almost surely, 2^1066640032 is an apocalyptic number.

It is an amenable number.

1066640032 is a deficient number, since it is larger than the sum of its proper divisors (1040798420).

1066640032 is a wasteful number, since it uses less digits than its factorization.

1066640032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118912 (or 118904 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1066640032 is about 32659.4554761711. The cubic root of 1066640032 is about 1021.7374054555.

The spelling of 1066640032 in words is "one billion, sixty-six million, six hundred forty thousand, thirty-two".