8233955643169 has 9 divisors (see below), whose sum is σ = 8257988493363. Its totient is φ = 8209992557232.

The previous prime is 8233955643161. The next prime is 8233955643197. The reversal of 8233955643169 is 9613465593328.

The square root of 8233955643169 is 2869487.

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., 726969390625 + 7506986252544 = 852625^2 + 2739888^2 .

It is not a de Polignac number, because 8233955643169 - 2³ = 8233955643161 is a prime.

It is a super-2 number, since 2×8233955643169² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8233955643169.

It is not an unprimeable number, because it can be changed into a prime (8233955643161) 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, 1030141837 + ... + 1030149829.

Almost surely, 2^{8233955643169} is an apocalyptic number.

8233955643169 is the 2869487-th square number.

8233955643169 is the 1434744-th centered octagonal number.

It is an amenable number.

8233955643169 is a deficient number, since it is larger than the sum of its proper divisors (24032850194).

8233955643169 is an frugal number, since it uses more digits than its factorization.

8233955643169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16704 (or 8352 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 64.

Multiplying 8233955643169 by its sum of digits (64), we get a square (526973161162816 = 22955896²).

The spelling of 8233955643169 in words is "eight trillion, two hundred thirty-three billion, nine hundred fifty-five million, six hundred forty-three thousand, one hundred sixty-nine".