66616022 has 8 divisors (see below), whose sum is σ = 109008072. Its totient is φ = 30280000.

The previous prime is 66615959. The next prime is 66616031. The reversal of 66616022 is 22061666.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1513979 + ... + 1514022.

It is an arithmetic number, because the mean of its divisors is an integer number (13626009).

Almost surely, 2^66616022 is an apocalyptic number.

66616022 is a deficient number, since it is larger than the sum of its proper divisors (42392050).

66616022 is a wasteful number, since it uses less digits than its factorization.

66616022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028014.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66616022 is about 8161.8638802666. The cubic root of 66616022 is about 405.3774299961.

Adding to 66616022 its reverse (22061666), we get a palindrome (88677688).

The spelling of 66616022 in words is "sixty-six million, six hundred sixteen thousand, twenty-two".