66000125 has 8 divisors (see below), whose sum is σ = 82368312. Its totient is φ = 52800000.

The previous prime is 66000083. The next prime is 66000149. The reversal of 66000125 is 52100066.

It can be written as a sum of positive squares in 4 ways, for example, as 276676 + 65723449 = 526^2 + 8107^2 .

It is not a de Polignac number, because 66000125 - 2¹⁴ = 65983741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66000097 and 66000106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263876 + ... + 264125.

It is an arithmetic number, because the mean of its divisors is an integer number (10296039).

Almost surely, 2^66000125 is an apocalyptic number.

It is an amenable number.

66000125 is a deficient number, since it is larger than the sum of its proper divisors (16368187).

66000125 is an equidigital number, since it uses as much as digits as its factorization.

66000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528016 (or 528006 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 66000125 is about 8124.0460978505. The cubic root of 66000125 is about 404.1242571908.

The spelling of 66000125 in words is "sixty-six million, one hundred twenty-five", and thus it is an aban number.