66733883 has 4 divisors (see below), whose sum is σ = 66987888. Its totient is φ = 66479880.

The previous prime is 66733861. The next prime is 66733967. The reversal of 66733883 is 38833766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38833766 = 2 ⋅19416883.

It is a cyclic number.

It is not a de Polignac number, because 66733883 - 2²⁰ = 65685307 is a prime.

It is a super-2 number, since 2×66733883² = 8906822280515378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66733813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126608 + ... + 127133.

It is an arithmetic number, because the mean of its divisors is an integer number (16746972).

Almost surely, 2^66733883 is an apocalyptic number.

66733883 is a deficient number, since it is larger than the sum of its proper divisors (254005).

66733883 is a wasteful number, since it uses less digits than its factorization.

66733883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254004.

The product of its digits is 435456, while the sum is 44.

The square root of 66733883 is about 8169.0809152560. The cubic root of 66733883 is about 405.6163617034.

The spelling of 66733883 in words is "sixty-six million, seven hundred thirty-three thousand, eight hundred eighty-three".