261162260433 has 24 divisors (see below), whose sum is σ = 385707598848. Its totient is φ = 170206051392.

The previous prime is 261162260431. The next prime is 261162260441. The reversal of 261162260433 is 334062261162.

261162260433 is a `hidden beast` number, since 2 + 6 + 1 + 16 + 2 + 2 + 604 + 33 = 666.

It is not a de Polignac number, because 261162260433 - 2¹ = 261162260431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261162260431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7341 + ... + 722757.

It is an arithmetic number, because the mean of its divisors is an integer number (16071149952).

Almost surely, 2^261162260433 is an apocalyptic number.

It is an amenable number.

261162260433 is a deficient number, since it is larger than the sum of its proper divisors (124545338415).

261162260433 is a wasteful number, since it uses less digits than its factorization.

261162260433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716333 (or 716330 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 261162260433 in words is "two hundred sixty-one billion, one hundred sixty-two million, two hundred sixty thousand, four hundred thirty-three".