66041339 has 16 divisors (see below), whose sum is σ = 82821312. Its totient is φ = 51262848.

The previous prime is 66041309. The next prime is 66041341. The reversal of 66041339 is 93314066.

It is a happy number.

It is not a de Polignac number, because 66041339 - 2⁸ = 66041083 is a prime.

It is a super-2 number, since 2×66041339² = 8722916913825842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66041309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024 + ... + 11669.

It is an arithmetic number, because the mean of its divisors is an integer number (5176332).

Almost surely, 2^66041339 is an apocalyptic number.

66041339 is a deficient number, since it is larger than the sum of its proper divisors (16779973).

66041339 is a wasteful number, since it uses less digits than its factorization.

66041339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13766.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 66041339 is about 8126.5822459383. The cubic root of 66041339 is about 404.2083586046.

The spelling of 66041339 in words is "sixty-six million, forty-one thousand, three hundred thirty-nine".