6353666940 has 96 divisors (see below), whose sum is σ = 17995622400. Its totient is φ = 1674867456.

The previous prime is 6353666911. The next prime is 6353666953. The reversal of 6353666940 is 496663536.

It is a self number, because there is not a number n which added to its sum of digits gives 6353666940.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1992027 + ... + 1995213.

It is an arithmetic number, because the mean of its divisors is an integer number (187454400).

Almost surely, 2^6353666940 is an apocalyptic number.

6353666940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6353666940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8997811200).

6353666940 is an abundant number, since it is smaller than the sum of its proper divisors (11641955460).

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

6353666940 is a wasteful number, since it uses less digits than its factorization.

6353666940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3569 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 48.

The square root of 6353666940 is about 79709.8923597316. The cubic root of 6353666940 is about 1852.1442816219.

The spelling of 6353666940 in words is "six billion, three hundred fifty-three million, six hundred sixty-six thousand, nine hundred forty".