2665742306 has 8 divisors (see below), whose sum is σ = 4019549184. Its totient is φ = 1325892580.

The previous prime is 2665742281. The next prime is 2665742323. The reversal of 2665742306 is 6032475662.

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, 3488810 + ... + 3489573.

It is an arithmetic number, because the mean of its divisors is an integer number (502443648).

Almost surely, 2^2665742306 is an apocalyptic number.

2665742306 is a deficient number, since it is larger than the sum of its proper divisors (1353806878).

2665742306 is a wasteful number, since it uses less digits than its factorization.

2665742306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978576.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 2665742306 is about 51630.8270900244. The cubic root of 2665742306 is about 1386.5623012116.

The spelling of 2665742306 in words is "two billion, six hundred sixty-five million, seven hundred forty-two thousand, three hundred six".