66882669 has 16 divisors (see below), whose sum is σ = 102039168. Its totient is φ = 38172672.

The previous prime is 66882667. The next prime is 66882677. The reversal of 66882669 is 96628866.

It is not a de Polignac number, because 66882669 - 2¹ = 66882667 is a prime.

It is a super-2 number, since 2×66882669² = 8946582825127122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66882667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24249 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (6377448).

Almost surely, 2^66882669 is an apocalyptic number.

It is an amenable number.

66882669 is a deficient number, since it is larger than the sum of its proper divisors (35156499).

66882669 is a wasteful number, since it uses less digits than its factorization.

66882669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844.

The product of its digits is 1492992, while the sum is 51.

The square root of 66882669 is about 8178.1824997979. The cubic root of 66882669 is about 405.9175841998.

The spelling of 66882669 in words is "sixty-six million, eight hundred eighty-two thousand, six hundred sixty-nine".