261324423162 has 96 divisors (see below), whose sum is σ = 638083330560. Its totient is φ = 76576752000.

The previous prime is 261324423137. The next prime is 261324423163.

261324423162 is a `hidden beast` number, since 2 + 613 + 2 + 4 + 4 + 2 + 31 + 6 + 2 = 666.

261324423162 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (261324423163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8461164 + ... + 8491992.

It is an arithmetic number, because the mean of its divisors is an integer number (6646701360).

Almost surely, 2^261324423162 is an apocalyptic number.

261324423162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 261324423162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319041665280).

261324423162 is an abundant number, since it is smaller than the sum of its proper divisors (376758907398).

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

261324423162 is a wasteful number, since it uses less digits than its factorization.

261324423162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32260 (or 32257 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

It can be divided in two parts, 261324 and 423162, that added together give a palindrome (684486).

The spelling of 261324423162 in words is "two hundred sixty-one billion, three hundred twenty-four million, four hundred twenty-three thousand, one hundred sixty-two".