1666230474 has 16 divisors (see below), whose sum is σ = 3335614560. Its totient is φ = 554884560.

The previous prime is 1666230473. The next prime is 1666230487. The reversal of 1666230474 is 4740326661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1666230473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124504 + ... + 137235.

It is an arithmetic number, because the mean of its divisors is an integer number (208475910).

Almost surely, 2^1666230474 is an apocalyptic number.

1666230474 is an abundant number, since it is smaller than the sum of its proper divisors (1669384086).

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

1666230474 is a wasteful number, since it uses less digits than its factorization.

1666230474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262805.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 1666230474 is about 40819.4864494888. The cubic root of 1666230474 is about 1185.5276597537.

The spelling of 1666230474 in words is "one billion, six hundred sixty-six million, two hundred thirty thousand, four hundred seventy-four".