260880000646 has 4 divisors (see below), whose sum is σ = 391320000972. Its totient is φ = 130440000322.

The previous prime is 260880000569. The next prime is 260880000653. The reversal of 260880000646 is 646000088062.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 260880000599 and 260880000608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65220000160 + ... + 65220000163.

It is an arithmetic number, because the mean of its divisors is an integer number (97830000243).

Almost surely, 2^260880000646 is an apocalyptic number.

260880000646 is a deficient number, since it is larger than the sum of its proper divisors (130440000326).

260880000646 is a wasteful number, since it uses less digits than its factorization.

260880000646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130440000325.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 260880000646 in words is "two hundred sixty billion, eight hundred eighty million, six hundred forty-six", and thus it is an aban number.