66523150 has 24 divisors (see below), whose sum is σ = 126614664. Its totient is φ = 25989600.

The previous prime is 66523141. The next prime is 66523169. The reversal of 66523150 is 5132566.

66523150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13321 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (5275611).

Almost surely, 2^66523150 is an apocalyptic number.

66523150 is a deficient number, since it is larger than the sum of its proper divisors (60091514).

66523150 is a wasteful number, since it uses less digits than its factorization.

66523150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30996 (or 30991 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 66523150 is about 8156.1725092104. The cubic root of 66523150 is about 405.1889582105.

It can be divided in two parts, 665231 and 50, that added together give a triangular number (665281 = T₁₁₅₃).

The spelling of 66523150 in words is "sixty-six million, five hundred twenty-three thousand, one hundred fifty".