6609551137 has 16 divisors (see below), whose sum is σ = 7837074432. Its totient is φ = 5454711360.

The previous prime is 6609551131. The next prime is 6609551161. The reversal of 6609551137 is 7311559066.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6609551137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6609551093 and 6609551102.

It is not an unprimeable number, because it can be changed into a prime (6609551131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34558 + ... + 120055.

It is an arithmetic number, because the mean of its divisors is an integer number (489817152).

Almost surely, 2^6609551137 is an apocalyptic number.

It is an amenable number.

6609551137 is a deficient number, since it is larger than the sum of its proper divisors (1227523295).

6609551137 is a wasteful number, since it uses less digits than its factorization.

6609551137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154848.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 6609551137 is about 81299.1459795243. The cubic root of 6609551137 is about 1876.6818580013.

The spelling of 6609551137 in words is "six billion, six hundred nine million, five hundred fifty-one thousand, one hundred thirty-seven".