66233799 has 12 divisors (see below), whose sum is σ = 95745936. Its totient is φ = 44121312.

The previous prime is 66233779. The next prime is 66233809. The reversal of 66233799 is 99733266.

It is not a de Polignac number, because 66233799 - 2¹² = 66229703 is a prime.

It is a super-2 number, since 2×66233799² = 8773832259944802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66233779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15294 + ... + 19140.

It is an arithmetic number, because the mean of its divisors is an integer number (7978828).

Almost surely, 2^66233799 is an apocalyptic number.

66233799 is a deficient number, since it is larger than the sum of its proper divisors (29512137).

66233799 is a wasteful number, since it uses less digits than its factorization.

66233799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766 (or 5763 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 66233799 is about 8138.4150176800. The cubic root of 66233799 is about 404.6006305464.

The spelling of 66233799 in words is "sixty-six million, two hundred thirty-three thousand, seven hundred ninety-nine".