66622045 has 8 divisors (see below), whose sum is σ = 91367424. Its totient is φ = 45683664.

The previous prime is 66622021. The next prime is 66622057. The reversal of 66622045 is 54022666.

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

It is a cyclic number.

It is not a de Polignac number, because 66622045 - 2⁵ = 66622013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66621998 and 66622016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951709 + ... + 951778.

It is an arithmetic number, because the mean of its divisors is an integer number (11420928).

Almost surely, 2^66622045 is an apocalyptic number.

It is an amenable number.

66622045 is a deficient number, since it is larger than the sum of its proper divisors (24745379).

66622045 is a wasteful number, since it uses less digits than its factorization.

66622045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903499.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 66622045 is about 8162.2328440201. The cubic root of 66622045 is about 405.3896468503.

The spelling of 66622045 in words is "sixty-six million, six hundred twenty-two thousand, forty-five".