66603026 has 8 divisors (see below), whose sum is σ = 114176640. Its totient is φ = 28544148.

The previous prime is 66603007. The next prime is 66603029. The reversal of 66603026 is 62030666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66603026.

It is not an unprimeable number, because it can be changed into a prime (66603029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378666 + ... + 2378693.

It is an arithmetic number, because the mean of its divisors is an integer number (14272080).

Almost surely, 2^66603026 is an apocalyptic number.

66603026 is a deficient number, since it is larger than the sum of its proper divisors (47573614).

66603026 is a wasteful number, since it uses less digits than its factorization.

66603026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757368.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 66603026 is about 8161.0676997560. The cubic root of 66603026 is about 405.3510668303.

The spelling of 66603026 in words is "sixty-six million, six hundred three thousand, twenty-six".