1266463016 has 96 divisors (see below), whose sum is σ = 2999736000. Its totient is φ = 500834880.

The previous prime is 1266462979. The next prime is 1266463039. The reversal of 1266463016 is 6103646621.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462371 + ... + 465101.

It is an arithmetic number, because the mean of its divisors is an integer number (31247250).

Almost surely, 2^1266463016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266463016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499868000).

1266463016 is an abundant number, since it is smaller than the sum of its proper divisors (1733272984).

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

1266463016 is a wasteful number, since it uses less digits than its factorization.

1266463016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1266463016 is about 35587.3996802239. The cubic root of 1266463016 is about 1081.9258664328.

The spelling of 1266463016 in words is "one billion, two hundred sixty-six million, four hundred sixty-three thousand, sixteen".