66882354369 has 16 divisors (see below), whose sum is σ = 89410024704. Its totient is φ = 44471548800.

The previous prime is 66882354337. The next prime is 66882354421. The reversal of 66882354369 is 96345328866.

It is not a de Polignac number, because 66882354369 - 2⁵ = 66882354337 is a prime.

It is a super-2 number, since 2×66882354369² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66882354169) 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, 3476952 + ... + 3496134.

It is an arithmetic number, because the mean of its divisors is an integer number (5588126544).

Almost surely, 2^66882354369 is an apocalyptic number.

It is an amenable number.

66882354369 is a deficient number, since it is larger than the sum of its proper divisors (22527670335).

66882354369 is a wasteful number, since it uses less digits than its factorization.

66882354369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22168.

The product of its digits is 44789760, while the sum is 60.

The spelling of 66882354369 in words is "sixty-six billion, eight hundred eighty-two million, three hundred fifty-four thousand, three hundred sixty-nine".