6650539487 has 16 divisors (see below), whose sum is σ = 6877972992. Its totient is φ = 6426725760.

The previous prime is 6650539459. The next prime is 6650539501. The reversal of 6650539487 is 7849350566.

It is a cyclic number.

It is not a de Polignac number, because 6650539487 - 2¹⁰ = 6650538463 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 (6650539187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065703 + ... + 2068919.

It is an arithmetic number, because the mean of its divisors is an integer number (429873312).

Almost surely, 2^6650539487 is an apocalyptic number.

6650539487 is a deficient number, since it is larger than the sum of its proper divisors (227433505).

6650539487 is a wasteful number, since it uses less digits than its factorization.

6650539487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The square root of 6650539487 is about 81550.8398914444. The cubic root of 6650539487 is about 1880.5532066526.

The spelling of 6650539487 in words is "six billion, six hundred fifty million, five hundred thirty-nine thousand, four hundred eighty-seven".