10306513666 has 8 divisors (see below), whose sum is σ = 15751464444. Its totient is φ = 5056025520.

The previous prime is 10306513649. The next prime is 10306513669. The reversal of 10306513666 is 66631560301.

It can be written as a sum of positive squares in 2 ways, for example, as 10306513441 + 225 = 101521^2 + 15^2 .

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 (10306513669) 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, 48615525 + ... + 48615736.

Almost surely, 2^10306513666 is an apocalyptic number.

10306513666 is a deficient number, since it is larger than the sum of its proper divisors (5444950778).

10306513666 is an equidigital number, since it uses as much as digits as its factorization.

10306513666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97231316.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 10306513666 in words is "ten billion, three hundred six million, five hundred thirteen thousand, six hundred sixty-six".