6545720202 has 64 divisors (see below), whose sum is σ = 15160400640. Its totient is φ = 1845448704.

The previous prime is 6545720201. The next prime is 6545720231. The reversal of 6545720202 is 2020275456.

It is not an unprimeable number, because it can be changed into a prime (6545720201) 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, 2215158 + ... + 2218110.

It is an arithmetic number, because the mean of its divisors is an integer number (236881260).

Almost surely, 2^6545720202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6545720202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7580200320).

6545720202 is an abundant number, since it is smaller than the sum of its proper divisors (8614680438).

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

6545720202 is a wasteful number, since it uses less digits than its factorization.

6545720202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 6545720202 is about 80905.6252803228. The cubic root of 6545720202 is about 1870.6210298747.

Adding to 6545720202 its reverse (2020275456), we get a palindrome (8565995658).

The spelling of 6545720202 in words is "six billion, five hundred forty-five million, seven hundred twenty thousand, two hundred two".