66233870 has 32 divisors (see below), whose sum is σ = 127044288. Its totient is φ = 24775168.

The previous prime is 66233851. The next prime is 66233891. The reversal of 66233870 is 7833266.

It is a self number, because there is not a number n which added to its sum of digits gives 66233870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27224 + ... + 29556.

It is an arithmetic number, because the mean of its divisors is an integer number (3970134).

Almost surely, 2^66233870 is an apocalyptic number.

66233870 is a deficient number, since it is larger than the sum of its proper divisors (60810418).

66233870 is a wasteful number, since it uses less digits than its factorization.

66233870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 66233870 is about 8138.4193797076. The cubic root of 66233870 is about 404.6007751183.

The spelling of 66233870 in words is "sixty-six million, two hundred thirty-three thousand, eight hundred seventy".