1666316046 has 64 divisors (see below), whose sum is σ = 3499030080. Its totient is φ = 528353280.

The previous prime is 1666316033. The next prime is 1666316101. The reversal of 1666316046 is 6406136661.

It is a junction number, because it is equal to n+sod(n) for n = 1666315995 and 1666316013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4944390 + ... + 4944726.

It is an arithmetic number, because the mean of its divisors is an integer number (54672345).

Almost surely, 2^1666316046 is an apocalyptic number.

1666316046 is an abundant number, since it is smaller than the sum of its proper divisors (1832714034).

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

1666316046 is a wasteful number, since it uses less digits than its factorization.

1666316046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1666316046 is about 40820.5346118838. The cubic root of 1666316046 is about 1185.5479543123.

The spelling of 1666316046 in words is "one billion, six hundred sixty-six million, three hundred sixteen thousand, forty-six".