66136614 has 16 divisors (see below), whose sum is σ = 135088128. Its totient is φ = 21576392.

The previous prime is 66136601. The next prime is 66136619. The reversal of 66136614 is 41663166.

66136614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66136614² = 8748103422769992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66136619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116982 + ... + 117545.

It is an arithmetic number, because the mean of its divisors is an integer number (8443008).

Almost surely, 2^66136614 is an apocalyptic number.

66136614 is an abundant number, since it is smaller than the sum of its proper divisors (68951514).

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

66136614 is a wasteful number, since it uses less digits than its factorization.

66136614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234579.

The product of its digits is 15552, while the sum is 33.

The square root of 66136614 is about 8132.4420686532. The cubic root of 66136614 is about 404.4026432119.

The spelling of 66136614 in words is "sixty-six million, one hundred thirty-six thousand, six hundred fourteen".