1260668205 has 48 divisors (see below), whose sum is σ = 2321452224. Its totient is φ = 655931520.

The previous prime is 1260668173. The next prime is 1260668239. The reversal of 1260668205 is 5028660621.

It is not a de Polignac number, because 1260668205 - 2⁵ = 1260668173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1260668205.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 37162 + ... + 62468.

It is an arithmetic number, because the mean of its divisors is an integer number (48363588).

Almost surely, 2^1260668205 is an apocalyptic number.

1260668205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1260668205 is a deficient number, since it is larger than the sum of its proper divisors (1060784019).

1260668205 is an equidigital number, since it uses as much as digits as its factorization.

1260668205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25368 (or 25356 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1260668205 is about 35505.8897226925. The cubic root of 1260668205 is about 1080.2731947762.

The spelling of 1260668205 in words is "one billion, two hundred sixty million, six hundred sixty-eight thousand, two hundred five".