5623641161 has 8 divisors (see below), whose sum is σ = 5730902280. Its totient is φ = 5516422912.

The previous prime is 5623641119. The next prime is 5623641173. The reversal of 5623641161 is 1611463265.

It can be written as a sum of positive squares in 4 ways, for example, as 1059828025 + 4563813136 = 32555^2 + 67556^2 .

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 5623641161 - 2³⁰ = 4549899337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5623641761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408161 + ... + 421713.

It is an arithmetic number, because the mean of its divisors is an integer number (716362785).

Almost surely, 2^5623641161 is an apocalyptic number.

It is an amenable number.

5623641161 is a deficient number, since it is larger than the sum of its proper divisors (107261119).

5623641161 is a wasteful number, since it uses less digits than its factorization.

5623641161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21435.

The product of its digits is 25920, while the sum is 35.

The square root of 5623641161 is about 74990.9405261729. The cubic root of 5623641161 is about 1778.3034334425.

The spelling of 5623641161 in words is "five billion, six hundred twenty-three million, six hundred forty-one thousand, one hundred sixty-one".