66487382 has 16 divisors (see below), whose sum is σ = 108918432. Its totient is φ = 30253440.

The previous prime is 66487381. The next prime is 66487397. The reversal of 66487382 is 28378466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66487381) 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, 16163 + ... + 19854.

It is an arithmetic number, because the mean of its divisors is an integer number (6807402).

Almost surely, 2^66487382 is an apocalyptic number.

66487382 is a deficient number, since it is larger than the sum of its proper divisors (42431050).

66487382 is a wasteful number, since it uses less digits than its factorization.

66487382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36103.

The product of its digits is 387072, while the sum is 44.

The square root of 66487382 is about 8153.9795192286. The cubic root of 66487382 is about 405.1163248645.

The spelling of 66487382 in words is "sixty-six million, four hundred eighty-seven thousand, three hundred eighty-two".