6665151 has 8 divisors (see below), whose sum is σ = 8999680. Its totient is φ = 4387032.

The previous prime is 6665123. The next prime is 6665159. The reversal of 6665151 is 1515666.

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

It is not a de Polignac number, because 6665151 - 2¹¹ = 6663103 is a prime.

6665151 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665159) 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, 13825 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (1124960).

Almost surely, 2^6665151 is an apocalyptic number.

6665151 is a deficient number, since it is larger than the sum of its proper divisors (2334529).

6665151 is a wasteful number, since it uses less digits than its factorization.

6665151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28205.

The product of its digits is 5400, while the sum is 30.

The square root of 6665151 is about 2581.6953731996. The cubic root of 6665151 is about 188.1929417258.

The spelling of 6665151 in words is "six million, six hundred sixty-five thousand, one hundred fifty-one".