6657151585 has 32 divisors (see below), whose sum is σ = 9218737152. Its totient is φ = 4520655360.

The previous prime is 6657151573. The next prime is 6657151607. The reversal of 6657151585 is 5851517566.

It is not a de Polignac number, because 6657151585 - 2²³ = 6648762977 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1638877 + ... + 1642933.

It is an arithmetic number, because the mean of its divisors is an integer number (288085536).

Almost surely, 2^6657151585 is an apocalyptic number.

It is an amenable number.

6657151585 is a deficient number, since it is larger than the sum of its proper divisors (2561585567).

6657151585 is a wasteful number, since it uses less digits than its factorization.

6657151585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513.

The product of its digits is 1260000, while the sum is 49.

The square root of 6657151585 is about 81591.3695497263. The cubic root of 6657151585 is about 1881.1762279655.

The spelling of 6657151585 in words is "six billion, six hundred fifty-seven million, one hundred fifty-one thousand, five hundred eighty-five".