66090141 has 16 divisors (see below), whose sum is σ = 105443520. Its totient is φ = 40670640.

The previous prime is 66090139. The next prime is 66090149. The reversal of 66090141 is 14109066.

It is not a de Polignac number, because 66090141 - 2¹ = 66090139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66090149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93795 + ... + 94496.

It is an arithmetic number, because the mean of its divisors is an integer number (6590220).

Almost surely, 2^66090141 is an apocalyptic number.

It is an amenable number.

66090141 is a deficient number, since it is larger than the sum of its proper divisors (39353379).

66090141 is a wasteful number, since it uses less digits than its factorization.

66090141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188313 (or 188307 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 66090141 is about 8129.5843067158. The cubic root of 66090141 is about 404.3078988807.

The spelling of 66090141 in words is "sixty-six million, ninety thousand, one hundred forty-one".