261444565444162 has 8 divisors (see below), whose sum is σ = 392167554698556. Its totient is φ = 130722047211312.

The previous prime is 261444565444079. The next prime is 261444565444171.

261444565444162 is nontrivially palindromic in base 10.

261444565444162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 220279650596041 + 41164914848121 = 14841821^2 + 6415989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 261444565444097 and 261444565444106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116364453 + ... + 118589944.

Almost surely, 2^{261444565444162} is an apocalyptic number.

261444565444162 is a deficient number, since it is larger than the sum of its proper divisors (130722989254394).

261444565444162 is a wasteful number, since it uses less digits than its factorization.

261444565444162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235510772.

The product of its digits is 88473600, while the sum is 58.

The spelling of 261444565444162 in words is "two hundred sixty-one trillion, four hundred forty-four billion, five hundred sixty-five million, four hundred forty-four thousand, one hundred sixty-two".