9920574163 has 4 divisors (see below), whose sum is σ = 9923146128. Its totient is φ = 9918002200.

The previous prime is 9920574121. The next prime is 9920574203. The reversal of 9920574163 is 3614750299.

It is a happy number.

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 9920574163 - 2¹³ = 9920565971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9920674163) 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, 1280188 + ... + 1287913.

It is an arithmetic number, because the mean of its divisors is an integer number (2480786532).

Almost surely, 2^9920574163 is an apocalyptic number.

9920574163 is a deficient number, since it is larger than the sum of its proper divisors (2571965).

9920574163 is a wasteful number, since it uses less digits than its factorization.

9920574163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571964.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 9920574163 is about 99602.0791098258. The cubic root of 9920574163 is about 2148.7155957881.

The spelling of 9920574163 in words is "nine billion, nine hundred twenty million, five hundred seventy-four thousand, one hundred sixty-three".