6540540202 has 32 divisors (see below), whose sum is σ = 11809313280. Its totient is φ = 2654020080.

The previous prime is 6540540197. The next prime is 6540540217. The reversal of 6540540202 is 2020450456.

It is a super-2 number, since 2×6540540202² = 85557332267956401608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528813 + ... + 541039.

It is an arithmetic number, because the mean of its divisors is an integer number (369041040).

Almost surely, 2^6540540202 is an apocalyptic number.

6540540202 is a deficient number, since it is larger than the sum of its proper divisors (5268773078).

6540540202 is a wasteful number, since it uses less digits than its factorization.

6540540202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14266.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 6540540202 is about 80873.6063372965. The cubic root of 6540540202 is about 1870.1274567819.

Adding to 6540540202 its reverse (2020450456), we get a palindrome (8560990658).

The spelling of 6540540202 in words is "six billion, five hundred forty million, five hundred forty thousand, two hundred two".