6526740220 has 144 divisors (see below), whose sum is σ = 18731690208. Its totient is φ = 1877783040.

The previous prime is 6526740193. The next prime is 6526740223. The reversal of 6526740220 is 220476256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6526740223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116854 + ... + 163426.

It is an arithmetic number, because the mean of its divisors is an integer number (130081182).

Almost surely, 2^6526740220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6526740220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9365845104).

6526740220 is an abundant number, since it is smaller than the sum of its proper divisors (12204949988).

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

6526740220 is a wasteful number, since it uses less digits than its factorization.

6526740220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46620 (or 46611 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 6526740220 is about 80788.2430802898. The cubic root of 6526740220 is about 1868.8112608486.

The spelling of 6526740220 in words is "six billion, five hundred twenty-six million, seven hundred forty thousand, two hundred twenty".