1632441666 has 8 divisors (see below), whose sum is σ = 3264883344. Its totient is φ = 544147220.

The previous prime is 1632441631. The next prime is 1632441673. The reversal of 1632441666 is 6661442361.

It is a sphenic number, since it is the product of 3 distinct primes.

1632441666 is an admirable number.

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, 136036800 + ... + 136036811.

It is an arithmetic number, because the mean of its divisors is an integer number (408110418).

Almost surely, 2^1632441666 is an apocalyptic number.

1632441666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1632441666 is a wasteful number, since it uses less digits than its factorization.

1632441666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272073616.

The product of its digits is 124416, while the sum is 39.

The square root of 1632441666 is about 40403.4858149640. The cubic root of 1632441666 is about 1177.4592622975.

The spelling of 1632441666 in words is "one billion, six hundred thirty-two million, four hundred forty-one thousand, six hundred sixty-six".