66160427 has 4 divisors (see below), whose sum is σ = 67092336. Its totient is φ = 65228520.

The previous prime is 66160399. The next prime is 66160433. The reversal of 66160427 is 72406166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66160427 - 2⁶ = 66160363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66160393 and 66160402.

It is not an unprimeable number, because it can be changed into a prime (66160487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465848 + ... + 465989.

It is an arithmetic number, because the mean of its divisors is an integer number (16773084).

Almost surely, 2^66160427 is an apocalyptic number.

66160427 is a deficient number, since it is larger than the sum of its proper divisors (931909).

66160427 is an equidigital number, since it uses as much as digits as its factorization.

66160427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931908.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 66160427 is about 8133.9060112593. The cubic root of 66160427 is about 404.4511734888.

The spelling of 66160427 in words is "sixty-six million, one hundred sixty thousand, four hundred twenty-seven".