6540065352 has 24 divisors (see below), whose sum is σ = 17712677190. Its totient is φ = 2180021760.

The previous prime is 6540065347. The next prime is 6540065437. The reversal of 6540065352 is 2535600456.

It is a happy number.

6540065352 is a `hidden beast` number, since 6 + 540 + 0 + 65 + 3 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3393528516 + 3146536836 = 58254^2 + 56094^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45417049 + ... + 45417192.

Almost surely, 2^6540065352 is an apocalyptic number.

It is an amenable number.

6540065352 is an abundant number, since it is smaller than the sum of its proper divisors (11172611838).

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

6540065352 is a wasteful number, since it uses less digits than its factorization.

6540065352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90834253 (or 90834246 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 6540065352 is about 80870.6705301743. The cubic root of 6540065352 is about 1870.0821979559.

The spelling of 6540065352 in words is "six billion, five hundred forty million, sixty-five thousand, three hundred fifty-two".