66883388 has 24 divisors (see below), whose sum is σ = 137509680. Its totient is φ = 28062720.

The previous prime is 66883387. The next prime is 66883391. The reversal of 66883388 is 88338866.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66883387) 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 7 ways as a sum of consecutive naturals, for example, 57893 + ... + 59036.

It is an arithmetic number, because the mean of its divisors is an integer number (5729570).

Almost surely, 2^66883388 is an apocalyptic number.

It is an amenable number.

66883388 is an abundant number, since it is smaller than the sum of its proper divisors (70626292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66883388 is a wasteful number, since it uses less digits than its factorization.

66883388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116957 (or 116955 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The square root of 66883388 is about 8178.2264581020. The cubic root of 66883388 is about 405.9190387554.

The spelling of 66883388 in words is "sixty-six million, eight hundred eighty-three thousand, three hundred eighty-eight".