66933875533 has 8 divisors (see below), whose sum is σ = 76568788800. Its totient is φ = 57317195040.

The previous prime is 66933875497. The next prime is 66933875537. The reversal of 66933875533 is 33557833966.

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

It is a de Polignac number, because none of the positive numbers 2^k-66933875533 is a prime.

It is a super-3 number, since 3×66933875533³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66933875537) 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, 4550323 + ... + 4565008.

It is an arithmetic number, because the mean of its divisors is an integer number (9571098600).

Almost surely, 2^66933875533 is an apocalyptic number.

It is an amenable number.

66933875533 is a deficient number, since it is larger than the sum of its proper divisors (9634913267).

66933875533 is a wasteful number, since it uses less digits than its factorization.

66933875533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9116387.

The product of its digits is 36741600, while the sum is 58.

The spelling of 66933875533 in words is "sixty-six billion, nine hundred thirty-three million, eight hundred seventy-five thousand, five hundred thirty-three".