261111162 has 32 divisors (see below), whose sum is σ = 570326400. Its totient is φ = 79208640.

The previous prime is 261111161. The next prime is 261111187.

261111162 is nontrivially palindromic in base 10.

261111162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (261111161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18037 + ... + 29112.

It is an arithmetic number, because the mean of its divisors is an integer number (17822700).

Almost surely, 2^261111162 is an apocalyptic number.

261111162 is an abundant number, since it is smaller than the sum of its proper divisors (309215238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261111162 is a wasteful number, since it uses less digits than its factorization.

261111162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47238.

The product of its digits is 144, while the sum is 21.

The square root of 261111162 is about 16158.9344326908. The cubic root of 261111162 is about 639.1583679808.

The spelling of 261111162 in words is "two hundred sixty-one million, one hundred eleven thousand, one hundred sixty-two".