66937182 has 48 divisors (see below), whose sum is σ = 146095488. Its totient is φ = 20436000.

The previous prime is 66937163. The next prime is 66937183. The reversal of 66937182 is 28173966.

It is a happy number.

It is a super-2 number, since 2×66937182² = 8961172668202248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66937183) 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 23 ways as a sum of consecutive naturals, for example, 254383 + ... + 254645.

It is an arithmetic number, because the mean of its divisors is an integer number (3043656).

Almost surely, 2^66937182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66937182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73047744).

66937182 is an abundant number, since it is smaller than the sum of its proper divisors (79158306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66937182 is a wasteful number, since it uses less digits than its factorization.

66937182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 532 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 66937182 is about 8181.5146519456. The cubic root of 66937182 is about 406.0278358616.

The spelling of 66937182 in words is "sixty-six million, nine hundred thirty-seven thousand, one hundred eighty-two".