1266364506 has 16 divisors (see below), whose sum is σ = 2762977248. Its totient is φ = 383746800.

The previous prime is 1266364487. The next prime is 1266364511. The reversal of 1266364506 is 6054636621.

1266364506 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 9593605 + ... + 9593736.

It is an arithmetic number, because the mean of its divisors is an integer number (172686078).

Almost surely, 2^1266364506 is an apocalyptic number.

1266364506 is an abundant number, since it is smaller than the sum of its proper divisors (1496612742).

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

1266364506 is a wasteful number, since it uses less digits than its factorization.

1266364506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19187357.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 1266364506 is about 35586.0155960175. The cubic root of 1266364506 is about 1081.8978136908.

The spelling of 1266364506 in words is "one billion, two hundred sixty-six million, three hundred sixty-four thousand, five hundred six".