1005231666 has 8 divisors (see below), whose sum is σ = 2010463344. Its totient is φ = 335077220.

The previous prime is 1005231653. The next prime is 1005231671. The reversal of 1005231666 is 6661325001.

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

1005231666 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, 83769300 + ... + 83769311.

It is an arithmetic number, because the mean of its divisors is an integer number (251307918).

Almost surely, 2^1005231666 is an apocalyptic number.

1005231666 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.

1005231666 is a wasteful number, since it uses less digits than its factorization.

1005231666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167538616.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1005231666 is about 31705.3885956315. The cubic root of 1005231666 is about 1001.7408563273.

Adding to 1005231666 its reverse (6661325001), we get a palindrome (7666556667).

The spelling of 1005231666 in words is "one billion, five million, two hundred thirty-one thousand, six hundred sixty-six".