66014145 has 24 divisors (see below), whose sum is σ = 121156776. Its totient is φ = 33136128.

The previous prime is 66014129. The next prime is 66014161. The reversal of 66014145 is 54141066.

It is an interprime number because it is at equal distance from previous prime (66014129) and next prime (66014161).

It can be written as a sum of positive squares in 4 ways, for example, as 986049 + 65028096 = 993^2 + 8064^2 .

It is not a de Polignac number, because 66014145 - 2⁴ = 66014129 is a prime.

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, 42382 + ... + 43911.

It is an arithmetic number, because the mean of its divisors is an integer number (5048199).

Almost surely, 2^66014145 is an apocalyptic number.

It is an amenable number.

66014145 is a deficient number, since it is larger than the sum of its proper divisors (55142631).

66014145 is a wasteful number, since it uses less digits than its factorization.

66014145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86321 (or 86318 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 66014145 is about 8124.9089225665. The cubic root of 66014145 is about 404.1528703738.

The spelling of 66014145 in words is "sixty-six million, fourteen thousand, one hundred forty-five".