9956622223 has 4 divisors (see below), whose sum is σ = 9976900968. Its totient is φ = 9936343480.

The previous prime is 9956622217. The next prime is 9956622227. The reversal of 9956622223 is 3222266599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222266599 = 53 ⋅60797483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9956622223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956622227) 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, 10138636 + ... + 10139617.

It is an arithmetic number, because the mean of its divisors is an integer number (2494225242).

Almost surely, 2^9956622223 is an apocalyptic number.

9956622223 is a deficient number, since it is larger than the sum of its proper divisors (20278745).

9956622223 is a wasteful number, since it uses less digits than its factorization.

9956622223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20278744.

The product of its digits is 699840, while the sum is 46.

The square root of 9956622223 is about 99782.8753995394. The cubic root of 9956622223 is about 2151.3150219472.

The spelling of 9956622223 in words is "nine billion, nine hundred fifty-six million, six hundred twenty-two thousand, two hundred twenty-three".