2303628640666 has 8 divisors (see below), whose sum is σ = 3658704311700. Its totient is φ = 1084060536768.

The previous prime is 2303628640657. The next prime is 2303628640799. The reversal of 2303628640666 is 6660468263032.

It can be written as a sum of positive squares in 2 ways, for example, as 2291817515625 + 11811125041 = 1513875^2 + 108679^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33876891741 + ... + 33876891808.

Almost surely, 2^{2303628640666} is an apocalyptic number.

2303628640666 is a deficient number, since it is larger than the sum of its proper divisors (1355075671034).

2303628640666 is a wasteful number, since it uses less digits than its factorization.

2303628640666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67753783568.

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 2303628640666 in words is "two trillion, three hundred three billion, six hundred twenty-eight million, six hundred forty thousand, six hundred sixty-six".