66541614 has 24 divisors (see below), whose sum is σ = 136794168. Its totient is φ = 21578400.

The previous prime is 66541603. The next prime is 66541627. The reversal of 66541614 is 41614566.

It is a happy number.

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, 4164 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (5699757).

Almost surely, 2^66541614 is an apocalyptic number.

66541614 is an abundant number, since it is smaller than the sum of its proper divisors (70252554).

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

66541614 is a wasteful number, since it uses less digits than its factorization.

66541614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180 (or 8143 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 66541614 is about 8157.3043341535. The cubic root of 66541614 is about 405.2264424891.

The spelling of 66541614 in words is "sixty-six million, five hundred forty-one thousand, six hundred fourteen".