3260720334591 has 24 divisors (see below), whose sum is σ = 4791142122000. Its totient is φ = 2136352033152.

The previous prime is 3260720334589. The next prime is 3260720334617. The reversal of 3260720334591 is 1954330270623.

3260720334591 is a `hidden beast` number, since 3 + 2 + 6 + 0 + 7 + 20 + 3 + 34 + 591 = 666.

It is not a de Polignac number, because 3260720334591 - 2¹ = 3260720334589 is a prime.

It is a super-2 number, since 2×3260720334591² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3260720334511) 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, 956955 + ... + 2727123.

It is an arithmetic number, because the mean of its divisors is an integer number (199630921750).

Almost surely, 2^{3260720334591} is an apocalyptic number.

3260720334591 is a deficient number, since it is larger than the sum of its proper divisors (1530421787409).

3260720334591 is a wasteful number, since it uses less digits than its factorization.

3260720334591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773703 (or 1773700 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 3260720334591 in words is "three trillion, two hundred sixty billion, seven hundred twenty million, three hundred thirty-four thousand, five hundred ninety-one".