6665150649 has 8 divisors (see below), whose sum is σ = 9193311360. Its totient is φ = 4290211856.

The previous prime is 6665150633. The next prime is 6665150671. The reversal of 6665150649 is 9460515666.

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

It is a cyclic number.

It is not a de Polignac number, because 6665150649 - 2⁴ = 6665150633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6665150598 and 6665150607.

It is not an unprimeable number, because it can be changed into a prime (6665150689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38305377 + ... + 38305550.

It is an arithmetic number, because the mean of its divisors is an integer number (1149163920).

Almost surely, 2^6665150649 is an apocalyptic number.

It is an amenable number.

6665150649 is a deficient number, since it is larger than the sum of its proper divisors (2528160711).

6665150649 is a wasteful number, since it uses less digits than its factorization.

6665150649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76610959.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The square root of 6665150649 is about 81640.3738906186. The cubic root of 6665150649 is about 1881.9293842223.

The spelling of 6665150649 in words is "six billion, six hundred sixty-five million, one hundred fifty thousand, six hundred forty-nine".