6653213240 has 32 divisors (see below), whose sum is σ = 15056275680. Its totient is φ = 2645899392.

The previous prime is 6653213221. The next prime is 6653213249. The reversal of 6653213240 is 423123566.

It is a super-2 number, since 2×6653213240² = 88530492833822595200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6653213197 and 6653213206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6653213249) 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, 473804 + ... + 487643.

It is an arithmetic number, because the mean of its divisors is an integer number (470508615).

Almost surely, 2^6653213240 is an apocalyptic number.

It is an amenable number.

6653213240 is an abundant number, since it is smaller than the sum of its proper divisors (8403062440).

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

6653213240 is a wasteful number, since it uses less digits than its factorization.

6653213240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961631 (or 961627 counting only the distinct ones).

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

The square root of 6653213240 is about 81567.2314106590. The cubic root of 6653213240 is about 1880.8051892729.

The spelling of 6653213240 in words is "six billion, six hundred fifty-three million, two hundred thirteen thousand, two hundred forty".