2402642666 has 8 divisors (see below), whose sum is σ = 3647385504. Its totient is φ = 1186847500.

The previous prime is 2402642651. The next prime is 2402642677. The reversal of 2402642666 is 6662462042.

It is a happy number.

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, 7236710 + ... + 7237041.

It is an arithmetic number, because the mean of its divisors is an integer number (455923188).

Almost surely, 2^2402642666 is an apocalyptic number.

2402642666 is a deficient number, since it is larger than the sum of its proper divisors (1244742838).

2402642666 is a wasteful number, since it uses less digits than its factorization.

2402642666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14473836.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 2402642666 is about 49016.7590319882. The cubic root of 2402642666 is about 1339.3571331568.

The spelling of 2402642666 in words is "two billion, four hundred two million, six hundred forty-two thousand, six hundred sixty-six".