9992566771 has 8 divisors (see below), whose sum is σ = 10902161088. Its totient is φ = 9083169000.

The previous prime is 9992566769. The next prime is 9992566777. The reversal of 9992566771 is 1776652999.

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 9992566771 - 2¹ = 9992566769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9992566777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69676 + ... + 157606.

It is an arithmetic number, because the mean of its divisors is an integer number (1362770136).

Almost surely, 2^9992566771 is an apocalyptic number.

9992566771 is a deficient number, since it is larger than the sum of its proper divisors (909594317).

9992566771 is a wasteful number, since it uses less digits than its factorization.

9992566771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98273.

The product of its digits is 12859560, while the sum is 61.

The square root of 9992566771 is about 99962.8269458202. The cubic root of 9992566771 is about 2153.9007441647.

The spelling of 9992566771 in words is "nine billion, nine hundred ninety-two million, five hundred sixty-six thousand, seven hundred seventy-one".