99532047169 has 9 divisors (see below), whose sum is σ = 102856436451. Its totient is φ = 96311871360.

The previous prime is 99532047161. The next prime is 99532047203. The reversal of 99532047169 is 96174023599.

It is a happy number.

The square root of 99532047169 is 315487.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 65487369025 + 34044678144 = 255905^2 + 184512^2 .

It is not a de Polignac number, because 99532047169 - 2³ = 99532047161 is a prime.

It is a super-2 number, since 2×99532047169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99532047161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9775009 + ... + 9785185.

It is an arithmetic number, because the mean of its divisors is an integer number (11428492939).

Almost surely, 2^99532047169 is an apocalyptic number.

99532047169 is the 315487-th square number.

99532047169 is the 157744-th centered octagonal number.

It is an amenable number.

99532047169 is a deficient number, since it is larger than the sum of its proper divisors (3324389282).

99532047169 is an frugal number, since it uses more digits than its factorization.

99532047169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20416 (or 10208 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 99532047169 in words is "ninety-nine billion, five hundred thirty-two million, forty-seven thousand, one hundred sixty-nine".