66336125 has 64 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 44928000.

The previous prime is 66336121. The next prime is 66336131. The reversal of 66336125 is 52163366.

It is not a de Polignac number, because 66336125 - 2² = 66336121 is a prime.

Its product of digits (19440) is a multiple of the sum of its prime factors (135).

It is a junction number, because it is equal to n+sod(n) for n = 66336091 and 66336100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66336121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1251599 + ... + 1251651.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^66336125 is an apocalyptic number.

It is an amenable number.

66336125 is a deficient number, since it is larger than the sum of its proper divisors (30708355).

66336125 is a wasteful number, since it uses less digits than its factorization.

66336125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 125 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 66336125 is about 8144.6991964099. The cubic root of 66336125 is about 404.8088820359.

The spelling of 66336125 in words is "sixty-six million, three hundred thirty-six thousand, one hundred twenty-five".