260622666 has 24 divisors (see below), whose sum is σ = 568998144. Its totient is φ = 86210280.

The previous prime is 260622653. The next prime is 260622671. The reversal of 260622666 is 666226062.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 260622666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52906 + ... + 57621.

It is an arithmetic number, because the mean of its divisors is an integer number (23708256).

Almost surely, 2^260622666 is an apocalyptic number.

260622666 is an abundant number, since it is smaller than the sum of its proper divisors (308375478).

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

260622666 is a wasteful number, since it uses less digits than its factorization.

260622666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110666 (or 110663 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 260622666 is about 16143.8120033653. The cubic root of 260622666 is about 638.7595324627.

The spelling of 260622666 in words is "two hundred sixty million, six hundred twenty-two thousand, six hundred sixty-six".