66225162223 has 4 divisors (see below), whose sum is σ = 72245631528. Its totient is φ = 60204692920.

The previous prime is 66225162221. The next prime is 66225162233. The reversal of 66225162223 is 32226152266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66225162223 - 2¹ = 66225162221 is a prime.

It is a super-2 number, since 2×66225162223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66225162221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010234636 + ... + 3010234657.

It is an arithmetic number, because the mean of its divisors is an integer number (18061407882).

Almost surely, 2^66225162223 is an apocalyptic number.

66225162223 is a deficient number, since it is larger than the sum of its proper divisors (6020469305).

66225162223 is a wasteful number, since it uses less digits than its factorization.

66225162223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020469304.

The product of its digits is 103680, while the sum is 37.

The spelling of 66225162223 in words is "sixty-six billion, two hundred twenty-five million, one hundred sixty-two thousand, two hundred twenty-three".