261224422162 has 24 divisors (see below), whose sum is σ = 453364707600. Its totient is φ = 112488983640.

The previous prime is 261224422139. The next prime is 261224422183.

It is a happy number.

261224422162 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28401712 + ... + 28410907.

It is an arithmetic number, because the mean of its divisors is an integer number (18890196150).

Almost surely, 2^261224422162 is an apocalyptic number.

261224422162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261224422162 is a deficient number, since it is larger than the sum of its proper divisors (192140285438).

261224422162 is a wasteful number, since it uses less digits than its factorization.

261224422162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56812662 (or 56812651 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

It can be divided in two parts, 261224 and 422162, that added together give a palindrome (683386).

The spelling of 261224422162 in words is "two hundred sixty-one billion, two hundred twenty-four million, four hundred twenty-two thousand, one hundred sixty-two".