20382238080261 has 12 divisors (see below), whose sum is σ = 29442272315040. Its totient is φ = 13587576371880.

The previous prime is 20382238080241. The next prime is 20382238080271. The reversal of 20382238080261 is 16208083228302.

It is a happy number.

20382238080261 is a `hidden beast` number, since 2 + 0 + 3 + 8 + 2 + 2 + 380 + 8 + 0 + 261 = 666.

It is not a de Polignac number, because 20382238080261 - 2¹⁰ = 20382238079237 is a prime.

It is a super-2 number, since 2×20382238080261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20382238080241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48307305 + ... + 48727406.

It is an arithmetic number, because the mean of its divisors is an integer number (2453522692920).

Almost surely, 2^{20382238080261} is an apocalyptic number.

It is an amenable number.

20382238080261 is a deficient number, since it is larger than the sum of its proper divisors (9060034234779).

20382238080261 is a wasteful number, since it uses less digits than its factorization.

20382238080261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97058056 (or 97058053 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 20382238080261 in words is "twenty trillion, three hundred eighty-two billion, two hundred thirty-eight million, eighty thousand, two hundred sixty-one".