66882998 has 32 divisors (see below), whose sum is σ = 130745664. Its totient is φ = 24901632.

The previous prime is 66882997. The next prime is 66883001. The reversal of 66882998 is 89928866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66882997) 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 15 ways as a sum of consecutive naturals, for example, 7715 + ... + 13902.

It is an arithmetic number, because the mean of its divisors is an integer number (4085802).

Almost surely, 2^66882998 is an apocalyptic number.

66882998 is a deficient number, since it is larger than the sum of its proper divisors (63862666).

66882998 is a wasteful number, since it uses less digits than its factorization.

66882998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21656.

The product of its digits is 2985984, while the sum is 56.

The square root of 66882998 is about 8178.2026142668. The cubic root of 66882998 is about 405.9182497766.

The spelling of 66882998 in words is "sixty-six million, eight hundred eighty-two thousand, nine hundred ninety-eight".