6540032061 has 12 divisors (see below), whose sum is σ = 9560529888. Its totient is φ = 4307490504.

The previous prime is 6540032053. The next prime is 6540032119. The reversal of 6540032061 is 1602300456.

6540032061 is a `hidden beast` number, since 654 + 0 + 0 + 3 + 2 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 6540032061 - 2³ = 6540032053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540032011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4376785 + ... + 4378278.

It is an arithmetic number, because the mean of its divisors is an integer number (796710824).

Almost surely, 2^6540032061 is an apocalyptic number.

It is an amenable number.

6540032061 is a deficient number, since it is larger than the sum of its proper divisors (3020497827).

6540032061 is a wasteful number, since it uses less digits than its factorization.

6540032061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755152 (or 8755149 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6540032061 is about 80870.4647012740. The cubic root of 6540032061 is about 1870.0790248473.

It can be divided in two parts, 65400 and 32061, that added together give a triangular number (97461 = T₄₄₁).

The spelling of 6540032061 in words is "six billion, five hundred forty million, thirty-two thousand, sixty-one".