66222046 has 8 divisors (see below), whose sum is σ = 108363384. Its totient is φ = 30100920.

The previous prime is 66222019. The next prime is 66222053. The reversal of 66222046 is 64022266.

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

It is a super-2 number, since 2×66222046² = 8770718752852232, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1505025 + ... + 1505068.

It is an arithmetic number, because the mean of its divisors is an integer number (13545423).

Almost surely, 2^66222046 is an apocalyptic number.

66222046 is a deficient number, since it is larger than the sum of its proper divisors (42141338).

66222046 is a wasteful number, since it uses less digits than its factorization.

66222046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010106.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66222046 is about 8137.6929163000. The cubic root of 66222046 is about 404.5766973855.

It can be divided in two parts, 662220 and 46, that added together give a palindrome (662266).

The spelling of 66222046 in words is "sixty-six million, two hundred twenty-two thousand, forty-six".