261410585014162 has 16 divisors (see below), whose sum is σ = 392437830439512. Its totient is φ = 130598011889280.

The previous prime is 261410585014157. The next prime is 261410585014237.

It is a happy number.

261410585014162 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 218651553970641 + 42759031043521 = 14786871^2 + 6539039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4873968 + ... + 23378980.

Almost surely, 2^{261410585014162} is an apocalyptic number.

261410585014162 is a deficient number, since it is larger than the sum of its proper divisors (131027245425350).

261410585014162 is a wasteful number, since it uses less digits than its factorization.

261410585014162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18510813.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 261410585014162 in words is "two hundred sixty-one trillion, four hundred ten billion, five hundred eighty-five million, fourteen thousand, one hundred sixty-two".