66711414 has 48 divisors (see below), whose sum is σ = 167618304. Its totient is φ = 17326320.

The previous prime is 66711389. The next prime is 66711433. The reversal of 66711414 is 41411766.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1482 + ... + 11645.

It is an arithmetic number, because the mean of its divisors is an integer number (3492048).

Almost surely, 2^66711414 is an apocalyptic number.

66711414 is an abundant number, since it is smaller than the sum of its proper divisors (100906890).

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

66711414 is a wasteful number, since it uses less digits than its factorization.

66711414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13161 (or 13150 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 66711414 is about 8167.7055529690. The cubic root of 66711414 is about 405.5708335216.

The spelling of 66711414 in words is "sixty-six million, seven hundred eleven thousand, four hundred fourteen".