1000266650 has 24 divisors (see below), whose sum is σ = 1861486140. Its totient is φ = 399893760.

The previous prime is 1000266649. The next prime is 1000266653. The reversal of 1000266650 is 566620001.

It can be written as a sum of positive squares in 6 ways, for example, as 370909081 + 629357569 = 19259^2 + 25087^2 .

It is a super-2 number, since 2×1000266650² = 2001066742204445000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000266653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117746 + ... + 125954.

Almost surely, 2^1000266650 is an apocalyptic number.

1000266650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000266650 is a deficient number, since it is larger than the sum of its proper divisors (861219490).

1000266650 is a wasteful number, since it uses less digits than its factorization.

1000266650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10658 (or 10653 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1000266650 is about 31626.9924273555. The cubic root of 1000266650 is about 1000.0888754343.

Adding to 1000266650 its reverse (566620001), we get a palindrome (1566886651).

The spelling of 1000266650 in words is "one billion, two hundred sixty-six thousand, six hundred fifty".