261334224315 has 64 divisors (see below), whose sum is σ = 476028241920. Its totient is φ = 135967403520.

The previous prime is 261334224299. The next prime is 261334224377. The reversal of 261334224315 is 513422433162.

261334224315 is a `hidden beast` number, since 2 + 6 + 1 + 334 + 2 + 2 + 4 + 315 = 666.

It is not a de Polignac number, because 261334224315 - 2⁴ = 261334224299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 261334224315.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1880835 + ... + 2014995.

It is an arithmetic number, because the mean of its divisors is an integer number (7437941280).

Almost surely, 2^261334224315 is an apocalyptic number.

261334224315 is a deficient number, since it is larger than the sum of its proper divisors (214694017605).

261334224315 is a wasteful number, since it uses less digits than its factorization.

261334224315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134529 (or 134523 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 261334224315 its reverse (513422433162), we get a palindrome (774756657477).

The spelling of 261334224315 in words is "two hundred sixty-one billion, three hundred thirty-four million, two hundred twenty-four thousand, three hundred fifteen".