6661134420250 has 32 divisors (see below), whose sum is σ = 12469830282000. Its totient is φ = 2664413886400.

The previous prime is 6661134420233. The next prime is 6661134420251. The reversal of 6661134420250 is 520244311666.

It can be written as a sum of positive squares in 8 ways, for example, as 2127569387161 + 4533565033089 = 1458619^2 + 2129217^2 .

It is a super-2 number, since 2×6661134420250² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6661134420251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21060276 + ... + 21374224.

Almost surely, 2^{6661134420250} is an apocalyptic number.

6661134420250 is a deficient number, since it is larger than the sum of its proper divisors (5808695861750).

6661134420250 is a wasteful number, since it uses less digits than its factorization.

6661134420250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398835 (or 398825 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 6661134420250 in words is "six trillion, six hundred sixty-one billion, one hundred thirty-four million, four hundred twenty thousand, two hundred fifty".