260173361723661 has 6 divisors (see below), whose sum is σ = 375805966934190. Its totient is φ = 173448907815768.

The previous prime is 260173361723651. The next prime is 260173361723683. The reversal of 260173361723661 is 166327163371062.

It is a happy number.

260173361723661 is a `hidden beast` number, since 2 + 6 + 0 + 1 + 7 + 336 + 17 + 236 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 166709905201161 + 93463456522500 = 12911619^2 + 9667650^2 .

It is not a de Polignac number, because 260173361723661 - 2²⁹ = 260172824852749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 260173361723598 and 260173361723607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260173361723651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14454075651306 + ... + 14454075651323.

It is an arithmetic number, because the mean of its divisors is an integer number (62634327822365).

Almost surely, 2^{260173361723661} is an apocalyptic number.

It is an amenable number.

260173361723661 is a deficient number, since it is larger than the sum of its proper divisors (115632605210529).

260173361723661 is a wasteful number, since it uses less digits than its factorization.

260173361723661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28908151302635 (or 28908151302632 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 54.

The spelling of 260173361723661 in words is "two hundred sixty trillion, one hundred seventy-three billion, three hundred sixty-one million, seven hundred twenty-three thousand, six hundred sixty-one".