2006545459987 has 4 divisors (see below), whose sum is σ = 2009797560216. Its totient is φ = 2003293359760.

The previous prime is 2006545459951. The next prime is 2006545460053. The reversal of 2006545459987 is 7899545456002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2006545459987 - 2¹⁹ = 2006544935699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2006545459907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626049189 + ... + 1626050422.

It is an arithmetic number, because the mean of its divisors is an integer number (502449390054).

Almost surely, 2^{2006545459987} is an apocalyptic number.

2006545459987 is a deficient number, since it is larger than the sum of its proper divisors (3252100229).

2006545459987 is an equidigital number, since it uses as much as digits as its factorization.

2006545459987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252100228.

The product of its (nonzero) digits is 108864000, while the sum is 64.

The spelling of 2006545459987 in words is "two trillion, six billion, five hundred forty-five million, four hundred fifty-nine thousand, nine hundred eighty-seven".