6516590041 has 8 divisors (see below), whose sum is σ = 7020092744. Its totient is φ = 6013405440.

The previous prime is 6516590033. The next prime is 6516590053. The reversal of 6516590041 is 1400956156.

It can be written as a sum of positive squares in 4 ways, for example, as 2502100441 + 4014489600 = 50021^2 + 63360^2 .

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 6516590041 - 2³ = 6516590033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6516590141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36090 + ... + 119731.

It is an arithmetic number, because the mean of its divisors is an integer number (877511593).

Almost surely, 2^6516590041 is an apocalyptic number.

It is an amenable number.

6516590041 is a deficient number, since it is larger than the sum of its proper divisors (503502703).

6516590041 is a wasteful number, since it uses less digits than its factorization.

6516590041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159051.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 6516590041 is about 80725.3989832196. The cubic root of 6516590041 is about 1867.8419862496.

The spelling of 6516590041 in words is "six billion, five hundred sixteen million, five hundred ninety thousand, forty-one".