1066163250 has 64 divisors (see below), whose sum is σ = 2752963200. Its totient is φ = 274500800.

The previous prime is 1066163239. The next prime is 1066163261. The reversal of 1066163250 is 523616601.

It is an interprime number because it is at equal distance from previous prime (1066163239) and next prime (1066163261).

It is a super-2 number, since 2×1066163250² = 2273408151301125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2760 + ... + 46259.

It is an arithmetic number, because the mean of its divisors is an integer number (43015050).

Almost surely, 2^1066163250 is an apocalyptic number.

1066163250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066163250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376481600).

1066163250 is an abundant number, since it is smaller than the sum of its proper divisors (1686799950).

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

1066163250 is a wasteful number, since it uses less digits than its factorization.

1066163250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49068 (or 49058 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1066163250 is about 32652.1553653048. The cubic root of 1066163250 is about 1021.5851458394.

Adding to 1066163250 its reverse (523616601), we get a palindrome (1589779851).

The spelling of 1066163250 in words is "one billion, sixty-six million, one hundred sixty-three thousand, two hundred fifty".