6016540021 has 8 divisors (see below), whose sum is σ = 6071448024. Its totient is φ = 5961661440.

The previous prime is 6016540009. The next prime is 6016540051. The reversal of 6016540021 is 1200456106.

It can be written as a sum of positive squares in 4 ways, for example, as 8584900 + 6007955121 = 2930^2 + 77511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6016540021 - 2⁹ = 6016539509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6016540001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800935 + ... + 808411.

It is an arithmetic number, because the mean of its divisors is an integer number (758931003).

Almost surely, 2^6016540021 is an apocalyptic number.

It is an amenable number.

6016540021 is a deficient number, since it is larger than the sum of its proper divisors (54908003).

6016540021 is a wasteful number, since it uses less digits than its factorization.

6016540021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14711.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6016540021 is about 77566.3588226236. The cubic root of 6016540021 is about 1818.7887949181.

Adding to 6016540021 its reverse (1200456106), we get a palindrome (7216996127).

The spelling of 6016540021 in words is "six billion, sixteen million, five hundred forty thousand, twenty-one".