66159882 has 16 divisors (see below), whose sum is σ = 147022080. Its totient is φ = 22053276.

The previous prime is 66159857. The next prime is 66159901. The reversal of 66159882 is 28895166.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612538 + ... + 612645.

It is an arithmetic number, because the mean of its divisors is an integer number (9188880).

Almost surely, 2^66159882 is an apocalyptic number.

66159882 is an abundant number, since it is smaller than the sum of its proper divisors (80862198).

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

66159882 is a wasteful number, since it uses less digits than its factorization.

66159882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225194 (or 1225188 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 66159882 is about 8133.8725094508. The cubic root of 66159882 is about 404.4500629232.

The spelling of 66159882 in words is "sixty-six million, one hundred fifty-nine thousand, eight hundred eighty-two".