6536689155 has 24 divisors (see below), whose sum is σ = 11332168848. Its totient is φ = 3485647296.

The previous prime is 6536689147. The next prime is 6536689157. The reversal of 6536689155 is 5519866356.

It is a happy number.

It is not a de Polignac number, because 6536689155 - 2³ = 6536689147 is a prime.

It is a super-2 number, since 2×6536689155² = 85456610218189228050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6536689157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450189 + ... + 464481.

It is an arithmetic number, because the mean of its divisors is an integer number (472173702).

Almost surely, 2^6536689155 is an apocalyptic number.

6536689155 is a deficient number, since it is larger than the sum of its proper divisors (4795479693).

6536689155 is a wasteful number, since it uses less digits than its factorization.

6536689155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24467 (or 24464 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 6536689155 is about 80849.7937845237. The cubic root of 6536689155 is about 1869.7603432375.

The spelling of 6536689155 in words is "six billion, five hundred thirty-six million, six hundred eighty-nine thousand, one hundred fifty-five".