1066253760 has 448 divisors, whose sum is σ = 4424232960. Its totient is φ = 238325760.

The previous prime is 1066253737. The next prime is 1066253777. The reversal of 1066253760 is 673526601.

1066253760 is a `hidden beast` number, since 1 + 0 + 6 + 62 + 537 + 60 = 666.

It is a super-2 number, since 2×1066253760² = 2273794161428275200, 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1235089 + ... + 1235951.

It is an arithmetic number, because the mean of its divisors is an integer number (9875520).

Almost surely, 2^1066253760 is an apocalyptic number.

1066253760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066253760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2212116480).

1066253760 is an abundant number, since it is smaller than the sum of its proper divisors (3357979200).

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

1066253760 is a wasteful number, since it uses less digits than its factorization.

1066253760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1066253760 is about 32653.5413087157. The cubic root of 1066253760 is about 1021.6140535622.

The spelling of 1066253760 in words is "one billion, sixty-six million, two hundred fifty-three thousand, seven hundred sixty".