647953221159 has 6 divisors (see below), whose sum is σ = 935932430576. Its totient is φ = 431968814100.

The previous prime is 647953221143. The next prime is 647953221229. The reversal of 647953221159 is 951122359746.

647953221159 is a `hidden beast` number, since 6 + 4 + 79 + 532 + 21 + 15 + 9 = 666.

It is not a de Polignac number, because 647953221159 - 2⁴ = 647953221143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647953221359) 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, 35997401167 + ... + 35997401184.

Almost surely, 2^647953221159 is an apocalyptic number.

647953221159 is a deficient number, since it is larger than the sum of its proper divisors (287979209417).

647953221159 is a wasteful number, since it uses less digits than its factorization.

647953221159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71994802357 (or 71994802354 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 647953221159 in words is "six hundred forty-seven billion, nine hundred fifty-three million, two hundred twenty-one thousand, one hundred fifty-nine".