6641253340 has 12 divisors (see below), whose sum is σ = 13946632056. Its totient is φ = 2656501328.

The previous prime is 6641253319. The next prime is 6641253347. The reversal of 6641253340 is 433521466.

It is a super-2 number, since 2×6641253340² = 88212491852122311200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6641253296 and 6641253305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641253347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166031314 + ... + 166031353.

It is an arithmetic number, because the mean of its divisors is an integer number (1162219338).

Almost surely, 2^6641253340 is an apocalyptic number.

It is an amenable number.

6641253340 is an abundant number, since it is smaller than the sum of its proper divisors (7305378716).

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

6641253340 is a wasteful number, since it uses less digits than its factorization.

6641253340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332062676 (or 332062674 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 6641253340 is about 81493.8852920880. The cubic root of 6641253340 is about 1879.6775269293.

The spelling of 6641253340 in words is "six billion, six hundred forty-one million, two hundred fifty-three thousand, three hundred forty".