6504022061 has 12 divisors (see below), whose sum is σ = 7050523932. Its totient is φ = 5979044736.

The previous prime is 6504022037. The next prime is 6504022081. The reversal of 6504022061 is 1602204056.

It can be written as a sum of positive squares in 2 ways, for example, as 2707120900 + 3796901161 = 52030^2 + 61619^2 .

It is not a de Polignac number, because 6504022061 - 2²² = 6499827757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6504022061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504022001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72026 + ... + 134891.

It is an arithmetic number, because the mean of its divisors is an integer number (587543661).

Almost surely, 2^6504022061 is an apocalyptic number.

It is an amenable number.

6504022061 is a deficient number, since it is larger than the sum of its proper divisors (546501871).

6504022061 is a wasteful number, since it uses less digits than its factorization.

6504022061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207020 (or 206977 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6504022061 is about 80647.5173889438. The cubic root of 6504022061 is about 1866.6404320541.

The spelling of 6504022061 in words is "six billion, five hundred four million, twenty-two thousand, sixty-one".