1666416430 has 32 divisors (see below), whose sum is σ = 3432729600. Its totient is φ = 570564000.

The previous prime is 1666416421. The next prime is 1666416461. The reversal of 1666416430 is 346146661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666416430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36721 + ... + 68419.

It is an arithmetic number, because the mean of its divisors is an integer number (107272800).

Almost surely, 2^1666416430 is an apocalyptic number.

1666416430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666416430 is an abundant number, since it is smaller than the sum of its proper divisors (1766313170).

1666416430 is a wasteful number, since it uses less digits than its factorization.

1666416430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32464.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1666416430 is about 40821.7641705990. The cubic root of 1666416430 is about 1185.5717608518.

The spelling of 1666416430 in words is "one billion, six hundred sixty-six million, four hundred sixteen thousand, four hundred thirty".