1066731264 has 108 divisors (see below), whose sum is σ = 3119446512. Its totient is φ = 350515200.

The previous prime is 1066731251. The next prime is 1066731277. The reversal of 1066731264 is 4621376601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1066731251) and next prime (1066731277).

It is a super-2 number, since 2×1066731264² = 2275831179190075392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160324 + ... + 166844.

It is an arithmetic number, because the mean of its divisors is an integer number (28883764).

Almost surely, 2^1066731264 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 1066731264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559723256).

1066731264 is an abundant number, since it is smaller than the sum of its proper divisors (2052715248).

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

1066731264 is an equidigital number, since it uses as much as digits as its factorization.

1066731264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1066731264 is about 32660.8521627958. The cubic root of 1066731264 is about 1021.7665350858.

The spelling of 1066731264 in words is "one billion, sixty-six million, seven hundred thirty-one thousand, two hundred sixty-four".