1266560212 has 6 divisors (see below), whose sum is σ = 2216480378. Its totient is φ = 633280104.

The previous prime is 1266560201. The next prime is 1266560213. The reversal of 1266560212 is 2120656621.

It can be written as a sum of positive squares in only one way, i.e., 1041740176 + 224820036 = 32276^2 + 14994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266560213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158320023 + ... + 158320030.

Almost surely, 2^1266560212 is an apocalyptic number.

It is an amenable number.

1266560212 is a deficient number, since it is larger than the sum of its proper divisors (949920166).

1266560212 is a wasteful number, since it uses less digits than its factorization.

1266560212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316640057 (or 316640055 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1266560212 is about 35588.7652497245. The cubic root of 1266560212 is about 1081.9535435607.

The spelling of 1266560212 in words is "one billion, two hundred sixty-six million, five hundred sixty thousand, two hundred twelve".