6606511537 has 2 divisors, whose sum is σ = 6606511538. Its totient is φ = 6606511536.

The previous prime is 6606511481. The next prime is 6606511543. The reversal of 6606511537 is 7351156066.

6606511537 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4404180496 + 2202331041 = 66364^2 + 46929^2 .

It is a cyclic number.

It is not a de Polignac number, because 6606511537 - 2¹⁹ = 6605987249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6606511537.

It is not a weakly prime, because it can be changed into another prime (6606511577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303255768 + 3303255769.

It is an arithmetic number, because the mean of its divisors is an integer number (3303255769).

Almost surely, 2^6606511537 is an apocalyptic number.

It is an amenable number.

6606511537 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606511537 is an equidigital number, since it uses as much as digits as its factorization.

6606511537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 6606511537 is about 81280.4499064812. The cubic root of 6606511537 is about 1876.3941311082.

The spelling of 6606511537 in words is "six billion, six hundred six million, five hundred eleven thousand, five hundred thirty-seven".