2006000516521 has 2 divisors, whose sum is σ = 2006000516522. Its totient is φ = 2006000516520.

The previous prime is 2006000516461. The next prime is 2006000516537. The reversal of 2006000516521 is 1256150006002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2004096066921 + 1904449600 = 1415661^2 + 43640^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006000516521 - 2¹⁹ = 2005999992233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2006000516521.

It is not a weakly prime, because it can be changed into another prime (2006000516551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003000258260 + 1003000258261.

It is an arithmetic number, because the mean of its divisors is an integer number (1003000258261).

Almost surely, 2^{2006000516521} is an apocalyptic number.

It is an amenable number.

2006000516521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006000516521 is an equidigital number, since it uses as much as digits as its factorization.

2006000516521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 2006000516521 in words is "two trillion, six billion, five hundred sixteen thousand, five hundred twenty-one".