260772366591 has 24 divisors (see below), whose sum is σ = 411119904000. Its totient is φ = 157964677200.

The previous prime is 260772366577. The next prime is 260772366601. The reversal of 260772366591 is 195663277062.

260772366591 is a `hidden beast` number, since 2 + 607 + 7 + 23 + 6 + 6 + 5 + 9 + 1 = 666.

It is not a de Polignac number, because 260772366591 - 2¹¹ = 260772364543 is a prime.

It is a super-2 number, since 2×260772366591² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260772366091) 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, 460945 + ... + 856746.

It is an arithmetic number, because the mean of its divisors is an integer number (17129996000).

Almost surely, 2^260772366591 is an apocalyptic number.

260772366591 is a deficient number, since it is larger than the sum of its proper divisors (150347537409).

260772366591 is a wasteful number, since it uses less digits than its factorization.

260772366591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319707 (or 1319704 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 260772366591 in words is "two hundred sixty billion, seven hundred seventy-two million, three hundred sixty-six thousand, five hundred ninety-one".