1266045310 has 16 divisors (see below), whose sum is σ = 2307729600. Its totient is φ = 500007456.

The previous prime is 1266045299. The next prime is 1266045323. The reversal of 1266045310 is 135406621.

It is a super-2 number, since 2×1266045310² = 3205741453945992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800505 + ... + 802084.

It is an arithmetic number, because the mean of its divisors is an integer number (144233100).

Almost surely, 2^1266045310 is an apocalyptic number.

1266045310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266045310 is a deficient number, since it is larger than the sum of its proper divisors (1041684290).

1266045310 is a wasteful number, since it uses less digits than its factorization.

1266045310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602675.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1266045310 is about 35581.5304617438. The cubic root of 1266045310 is about 1081.8069060909.

It can be divided in two parts, 12660 and 45310, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 1266045310 in words is "one billion, two hundred sixty-six million, forty-five thousand, three hundred ten".