1666045032 has 64 divisors (see below), whose sum is σ = 4195800000. Its totient is φ = 551276544.

The previous prime is 1666044977. The next prime is 1666045037. The reversal of 1666045032 is 2305406661.

It is a junction number, because it is equal to n+sod(n) for n = 1666044984 and 1666045002.

It is not an unprimeable number, because it can be changed into a prime (1666045037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3710344 + ... + 3710792.

It is an arithmetic number, because the mean of its divisors is an integer number (65559375).

Almost surely, 2^1666045032 is an apocalyptic number.

1666045032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1666045032 is an abundant number, since it is smaller than the sum of its proper divisors (2529754968).

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

1666045032 is a wasteful number, since it uses less digits than its factorization.

1666045032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1666045032 is about 40817.2148976385. The cubic root of 1666045032 is about 1185.4836772875.

The spelling of 1666045032 in words is "one billion, six hundred sixty-six million, forty-five thousand, thirty-two".