6623532140 has 24 divisors (see below), whose sum is σ = 14389053840. Its totient is φ = 2558053568.

The previous prime is 6623532121. The next prime is 6623532143. The reversal of 6623532140 is 412353266.

It is a super-2 number, since 2×6623532140² = 87742356019225959200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6623532097 and 6623532106.

It is not an unprimeable number, because it can be changed into a prime (6623532143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5709362 + ... + 5710521.

It is an arithmetic number, because the mean of its divisors is an integer number (599543910).

Almost surely, 2^6623532140 is an apocalyptic number.

It is an amenable number.

6623532140 is an abundant number, since it is smaller than the sum of its proper divisors (7765521700).

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

6623532140 is a wasteful number, since it uses less digits than its factorization.

6623532140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11419921 (or 11419919 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 6623532140 is about 81385.0854886815. The cubic root of 6623532140 is about 1878.0041573905.

The spelling of 6623532140 in words is "six billion, six hundred twenty-three million, five hundred thirty-two thousand, one hundred forty".