260647201565 has 16 divisors (see below), whose sum is σ = 315866304000. Its totient is φ = 206458666752.

The previous prime is 260647201517. The next prime is 260647201571. The reversal of 260647201565 is 565102746062.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260647201565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3281996 + ... + 3360474.

It is an arithmetic number, because the mean of its divisors is an integer number (19741644000).

Almost surely, 2^260647201565 is an apocalyptic number.

It is an amenable number.

260647201565 is a deficient number, since it is larger than the sum of its proper divisors (55219102435).

260647201565 is a wasteful number, since it uses less digits than its factorization.

260647201565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85036.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 260647201565 in words is "two hundred sixty billion, six hundred forty-seven million, two hundred one thousand, five hundred sixty-five".