261560417032 has 32 divisors (see below), whose sum is σ = 500901868800. Its totient is φ = 127987046784.

The previous prime is 261560417023. The next prime is 261560417033. The reversal of 261560417032 is 230714065162.

It is a junction number, because it is equal to n+sod(n) for n = 261560416982 and 261560417000.

It is not an unprimeable number, because it can be changed into a prime (261560417033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6450373 + ... + 6490795.

It is an arithmetic number, because the mean of its divisors is an integer number (15653183400).

Almost surely, 2^261560417032 is an apocalyptic number.

It is an amenable number.

261560417032 is a deficient number, since it is larger than the sum of its proper divisors (239341451768).

261560417032 is a wasteful number, since it uses less digits than its factorization.

261560417032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57685 (or 57681 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 261560417032 in words is "two hundred sixty-one billion, five hundred sixty million, four hundred seventeen thousand, thirty-two".