260012661650 has 288 divisors, whose sum is σ = 626495504400. Its totient is φ = 79659417600.

The previous prime is 260012661631. The next prime is 260012661691. The reversal of 260012661650 is 56166210062.

It can be written as a sum of positive squares in 24 ways, for example, as 64499237089 + 195513424561 = 253967^2 + 442169^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 260012661650.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 73677086 + ... + 73680614.

Almost surely, 2^260012661650 is an apocalyptic number.

260012661650 is an abundant number, since it is smaller than the sum of its proper divisors (366482842750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260012661650 is a wasteful number, since it uses less digits than its factorization.

260012661650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662 (or 3650 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 260012661650 in words is "two hundred sixty billion, twelve million, six hundred sixty-one thousand, six hundred fifty".