6564956153 has 6 divisors (see below), whose sum is σ = 7636785786. Its totient is φ = 5627105232.

The previous prime is 6564956143. The next prime is 6564956183. The reversal of 6564956153 is 3516594656.

It can be written as a sum of positive squares in only one way, i.e., 5022273424 + 1542682729 = 70868^2 + 39277^2 .

It is not a de Polignac number, because 6564956153 - 2⁶ = 6564956089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6564956143) 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 5 ways as a sum of consecutive naturals, for example, 66989300 + ... + 66989397.

It is an arithmetic number, because the mean of its divisors is an integer number (1272797631).

Almost surely, 2^6564956153 is an apocalyptic number.

It is an amenable number.

6564956153 is a deficient number, since it is larger than the sum of its proper divisors (1071829633).

6564956153 is a wasteful number, since it uses less digits than its factorization.

6564956153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133978711 (or 133978704 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 50.

The square root of 6564956153 is about 81024.4170173411. The cubic root of 6564956153 is about 1872.4516399424.

The spelling of 6564956153 in words is "six billion, five hundred sixty-four million, nine hundred fifty-six thousand, one hundred fifty-three".