109813367161 has 27 divisors (see below), whose sum is σ = 118432995303. Its totient is φ = 101800243200.

The previous prime is 109813367159. The next prime is 109813367177. The reversal of 109813367161 is 161763318901.

The square root of 109813367161 is 331381.

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

It can be written as a sum of positive squares in 13 ways, for example, as 3315571561 + 106497795600 = 57581^2 + 326340^2 .

It is not a de Polignac number, because 109813367161 - 2¹ = 109813367159 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109811367161) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 568981081 + ... + 568981273.

Almost surely, 2^109813367161 is an apocalyptic number.

109813367161 is the 331381-st square number.

109813367161 is the 165691-st centered octagonal number.

It is an amenable number.

109813367161 is a deficient number, since it is larger than the sum of its proper divisors (8619628142).

109813367161 is an frugal number, since it uses more digits than its factorization.

109813367161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 109813367161 in words is "one hundred nine billion, eight hundred thirteen million, three hundred sixty-seven thousand, one hundred sixty-one".