66523006 has 32 divisors (see below), whose sum is σ = 116702208. Its totient is φ = 28103040.

The previous prime is 66522997. The next prime is 66523043. The reversal of 66523006 is 60032566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29971 + ... + 32113.

It is an arithmetic number, because the mean of its divisors is an integer number (3646944).

Almost surely, 2^66523006 is an apocalyptic number.

66523006 is a deficient number, since it is larger than the sum of its proper divisors (50179202).

66523006 is a wasteful number, since it uses less digits than its factorization.

66523006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 66523006 is about 8156.1636815356. The cubic root of 66523006 is about 405.1886658448.

The spelling of 66523006 in words is "sixty-six million, five hundred twenty-three thousand, six".