66633322 has 16 divisors (see below), whose sum is σ = 117914112. Its totient is φ = 27635760.

The previous prime is 66633299. The next prime is 66633341. The reversal of 66633322 is 22333666.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76333 + ... + 77200.

It is an arithmetic number, because the mean of its divisors is an integer number (7369632).

Almost surely, 2^66633322 is an apocalyptic number.

66633322 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

66633322 is a deficient number, since it is larger than the sum of its proper divisors (51280790).

66633322 is a wasteful number, since it uses less digits than its factorization.

66633322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153573.

The product of its digits is 23328, while the sum is 31.

The square root of 66633322 is about 8162.9236184103. The cubic root of 66633322 is about 405.4125187647.

Adding to 66633322 its reverse (22333666), we get a palindrome (88966988).

The spelling of 66633322 in words is "sixty-six million, six hundred thirty-three thousand, three hundred twenty-two".