66702168 has 48 divisors (see below), whose sum is σ = 194550720. Its totient is φ = 20523456.

The previous prime is 66702137. The next prime is 66702191. The reversal of 66702168 is 86120766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34696 + ... + 36567.

It is an arithmetic number, because the mean of its divisors is an integer number (4053140).

Almost surely, 2^66702168 is an apocalyptic number.

It is an amenable number.

66702168 is an abundant number, since it is smaller than the sum of its proper divisors (127848552).

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

66702168 is a wasteful number, since it uses less digits than its factorization.

66702168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71288 (or 71281 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 66702168 is about 8167.1395237255. The cubic root of 66702168 is about 405.5520956927.

The spelling of 66702168 in words is "sixty-six million, seven hundred two thousand, one hundred sixty-eight".