66151141 has 16 divisors (see below), whose sum is σ = 79862400. Its totient is φ = 53526528.

The previous prime is 66151123. The next prime is 66151181. The reversal of 66151141 is 14115166.

It is a 7-Lehmer number, since φ(66151141) divides (66151141-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 66151141 - 2¹⁵ = 66118373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151181) 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, 46245 + ... + 47653.

It is an arithmetic number, because the mean of its divisors is an integer number (4991400).

Almost surely, 2^66151141 is an apocalyptic number.

It is an amenable number.

66151141 is a deficient number, since it is larger than the sum of its proper divisors (13711259).

66151141 is a wasteful number, since it uses less digits than its factorization.

66151141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its digits is 720, while the sum is 25.

The square root of 66151141 is about 8133.3351707648. The cubic root of 66151141 is about 404.4322502468.

The spelling of 66151141 in words is "sixty-six million, one hundred fifty-one thousand, one hundred forty-one".