66161282 has 16 divisors (see below), whose sum is σ = 108736992. Its totient is φ = 29941920.

The previous prime is 66161281. The next prime is 66161321. The reversal of 66161282 is 28216166.

It is not an unprimeable number, because it can be changed into a prime (66161281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328 + ... + 11579.

It is an arithmetic number, because the mean of its divisors is an integer number (6796062).

Almost surely, 2^66161282 is an apocalyptic number.

66161282 is a deficient number, since it is larger than the sum of its proper divisors (42575710).

66161282 is a wasteful number, since it uses less digits than its factorization.

66161282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13153.

The product of its digits is 6912, while the sum is 32.

The square root of 66161282 is about 8133.9585688642. The cubic root of 66161282 is about 404.4529157401.

Subtracting from 66161282 its reverse (28216166), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 66161282 in words is "sixty-six million, one hundred sixty-one thousand, two hundred eighty-two".