66060851 has 4 divisors (see below), whose sum is σ = 66357312. Its totient is φ = 65764392.

The previous prime is 66060829. The next prime is 66060871. The reversal of 66060851 is 15806066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15806066 = 2 ⋅7903033.

It is a cyclic number.

It is not a de Polignac number, because 66060851 - 2¹⁴ = 66044467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66060821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147896 + ... + 148341.

It is an arithmetic number, because the mean of its divisors is an integer number (16589328).

Almost surely, 2^66060851 is an apocalyptic number.

66060851 is a deficient number, since it is larger than the sum of its proper divisors (296461).

66060851 is a wasteful number, since it uses less digits than its factorization.

66060851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296460.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 66060851 is about 8127.7826619565. The cubic root of 66060851 is about 404.2481626476.

The spelling of 66060851 in words is "sixty-six million, sixty thousand, eight hundred fifty-one".