261442121244162 has 32 divisors (see below), whose sum is σ = 533370181354560. Its totient is φ = 85403545656000.

The previous prime is 261442121244127. The next prime is 261442121244163.

261442121244162 is nontrivially palindromic in base 10.

261442121244162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (261442121244163) 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, 478274589 + ... + 478820912.

It is an arithmetic number, because the mean of its divisors is an integer number (16667818167330).

Almost surely, 2^{261442121244162} is an apocalyptic number.

261442121244162 is an abundant number, since it is smaller than the sum of its proper divisors (271928060110398).

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

261442121244162 is a wasteful number, since it uses less digits than its factorization.

261442121244162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957096418.

The product of its digits is 294912, while the sum is 42.

The spelling of 261442121244162 in words is "two hundred sixty-one trillion, four hundred forty-two billion, one hundred twenty-one million, two hundred forty-four thousand, one hundred sixty-two".