6520631922 has 64 divisors (see below), whose sum is σ = 16656226560. Its totient is φ = 1852250112.

The previous prime is 6520631917. The next prime is 6520631927. The reversal of 6520631922 is 2291360256.

It is an interprime number because it is at equal distance from previous prime (6520631917) and next prime (6520631927).

It is not an unprimeable number, because it can be changed into a prime (6520631927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15538 + ... + 115250.

It is an arithmetic number, because the mean of its divisors is an integer number (260253540).

Almost surely, 2^6520631922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6520631922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8328113280).

6520631922 is an abundant number, since it is smaller than the sum of its proper divisors (10135594638).

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

6520631922 is a wasteful number, since it uses less digits than its factorization.

6520631922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99904 (or 99898 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6520631922 is about 80750.4298564410. The cubic root of 6520631922 is about 1868.2280795213.

The spelling of 6520631922 in words is "six billion, five hundred twenty million, six hundred thirty-one thousand, nine hundred twenty-two".