66606254 has 32 divisors (see below), whose sum is σ = 117863424. Its totient is φ = 27830880.

The previous prime is 66606217. The next prime is 66606271. The reversal of 66606254 is 45260666.

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, 132167 + ... + 132669.

It is an arithmetic number, because the mean of its divisors is an integer number (3683232).

Almost surely, 2^66606254 is an apocalyptic number.

66606254 is a deficient number, since it is larger than the sum of its proper divisors (51257170).

66606254 is a wasteful number, since it uses less digits than its factorization.

66606254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 66606254 is about 8161.2654656003. The cubic root of 66606254 is about 405.3576153421.

The spelling of 66606254 in words is "sixty-six million, six hundred six thousand, two hundred fifty-four".