1266833568 has 192 divisors, whose sum is σ = 4465262592. Its totient is φ = 303713280.

The previous prime is 1266833567. The next prime is 1266833573. The reversal of 1266833568 is 8653386621.

It is a super-2 number, since 2×1266833568² = 3209734578023221248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1266833567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89505 + ... + 102687.

It is an arithmetic number, because the mean of its divisors is an integer number (23256576).

Almost surely, 2^1266833568 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 1266833568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232631296).

1266833568 is an abundant number, since it is smaller than the sum of its proper divisors (3198429024).

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

1266833568 is a wasteful number, since it uses less digits than its factorization.

1266833568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13227 (or 13219 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 1266833568 is about 35592.6055241816. The cubic root of 1266833568 is about 1082.0313756856.

The spelling of 1266833568 in words is "one billion, two hundred sixty-six million, eight hundred thirty-three thousand, five hundred sixty-eight".