2047630666 has 8 divisors (see below), whose sum is σ = 3177358020. Its totient is φ = 988511328.

The previous prime is 2047630661. The next prime is 2047630681. The reversal of 2047630666 is 6660367402.

It can be written as a sum of positive squares in 2 ways, for example, as 2034461025 + 13169641 = 45105^2 + 3629^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2047630661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17651931 + ... + 17652046.

Almost surely, 2^2047630666 is an apocalyptic number.

2047630666 is a deficient number, since it is larger than the sum of its proper divisors (1129727354).

2047630666 is a wasteful number, since it uses less digits than its factorization.

2047630666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35304008.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 2047630666 is about 45250.7532092008. The cubic root of 2047630666 is about 1269.8444982898.

The spelling of 2047630666 in words is "two billion, forty-seven million, six hundred thirty thousand, six hundred sixty-six".