1266251060 has 36 divisors (see below), whose sum is σ = 2689677228. Its totient is φ = 500746752.

The previous prime is 1266251059. The next prime is 1266251083. The reversal of 1266251060 is 601526621.

It can be written as a sum of positive squares in 6 ways, for example, as 457189924 + 809061136 = 21382^2 + 28444^2 .

It is a super-2 number, since 2×1266251060² = 3206783493902247200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 154424 + ... + 162416.

Almost surely, 2^1266251060 is an apocalyptic number.

1266251060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266251060 is an abundant number, since it is smaller than the sum of its proper divisors (1423426168).

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

1266251060 is an equidigital number, since it uses as much as digits as its factorization.

1266251060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180 (or 8089 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1266251060 is about 35584.4215914774. The cubic root of 1266251060 is about 1081.8655058142.

Adding to 1266251060 its reverse (601526621), we get a palindrome (1867777681).

The spelling of 1266251060 in words is "one billion, two hundred sixty-six million, two hundred fifty-one thousand, sixty".