2101266466 has 48 divisors (see below), whose sum is σ = 3515755320. Its totient is φ = 936230400.

The previous prime is 2101266439. The next prime is 2101266469. The reversal of 2101266466 is 6646621012.

It can be written as a sum of positive squares in 4 ways, for example, as 2057983225 + 43283241 = 45365^2 + 6579^2 .

It is a super-2 number, since 2×2101266466² = 8830641522272258312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101266469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5239866 + ... + 5240266.

Almost surely, 2^2101266466 is an apocalyptic number.

2101266466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2101266466 is a deficient number, since it is larger than the sum of its proper divisors (1414488854).

2101266466 is a wasteful number, since it uses less digits than its factorization.

2101266466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2101266466 is about 45839.5731437368. The cubic root of 2101266466 is about 1280.8365434090.

Adding to 2101266466 its reverse (6646621012), we get a palindrome (8747887478).

It can be divided in two parts, 21012 and 66466, that added together give a palindrome (87478).

The spelling of 2101266466 in words is "two billion, one hundred one million, two hundred sixty-six thousand, four hundred sixty-six".