5271671656 has 8 divisors (see below), whose sum is σ = 9884384370. Its totient is φ = 2635835824.

The previous prime is 5271671651. The next prime is 5271671693. The reversal of 5271671656 is 6561761725.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5064599556 + 207072100 = 71166^2 + 14390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5271671651) 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 as a sum of consecutive naturals, namely, 329479471 + ... + 329479486.

Almost surely, 2^5271671656 is an apocalyptic number.

It is an amenable number.

5271671656 is a deficient number, since it is larger than the sum of its proper divisors (4612712714).

5271671656 is a wasteful number, since it uses less digits than its factorization.

5271671656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658958963 (or 658958959 counting only the distinct ones).

The product of its digits is 529200, while the sum is 46.

The square root of 5271671656 is about 72606.2783511178. The cubic root of 5271671656 is about 1740.4015077319.

The spelling of 5271671656 in words is "five billion, two hundred seventy-one million, six hundred seventy-one thousand, six hundred fifty-six".