261562664267332 has 12 divisors (see below), whose sum is σ = 468898922528316. Its totient is φ = 127591543544960.

The previous prime is 261562664267329. The next prime is 261562664267389. The reversal of 261562664267332 is 233762466265162.

It can be written as a sum of positive squares in 2 ways, for example, as 36138084158016 + 225424580109316 = 6011496^2 + 15014146^2 .

It is a super-4 number, since 4×261562664267332⁴ (a number of 59 digits) contains 4444 as substring.

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, 797447146993 + ... + 797447147320.

It is an arithmetic number, because the mean of its divisors is an integer number (39074910210693).

Almost surely, 2^{261562664267332} is an apocalyptic number.

It is an amenable number.

261562664267332 is a deficient number, since it is larger than the sum of its proper divisors (207336258260984).

261562664267332 is a wasteful number, since it uses less digits than its factorization.

261562664267332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594894294358 (or 1594894294356 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 61.

The spelling of 261562664267332 in words is "two hundred sixty-one trillion, five hundred sixty-two billion, six hundred sixty-four million, two hundred sixty-seven thousand, three hundred thirty-two".