260511656 has 8 divisors (see below), whose sum is σ = 488459370. Its totient is φ = 130255824.

The previous prime is 260511649. The next prime is 260511659. The reversal of 260511656 is 656115062.

It can be written as a sum of positive squares in only one way, i.e., 257089156 + 3422500 = 16034^2 + 1850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (260511659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16281971 + ... + 16281986.

Almost surely, 2^260511656 is an apocalyptic number.

It is an amenable number.

260511656 is a deficient number, since it is larger than the sum of its proper divisors (227947714).

260511656 is a wasteful number, since it uses less digits than its factorization.

260511656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32563963 (or 32563959 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 260511656 is about 16140.3734777111. The cubic root of 260511656 is about 638.6688281930.

The spelling of 260511656 in words is "two hundred sixty million, five hundred eleven thousand, six hundred fifty-six".