5655271665 has 16 divisors (see below), whose sum is σ = 9049738176. Its totient is φ = 3015710400.

The previous prime is 5655271651. The next prime is 5655271679. The reversal of 5655271665 is 5661725565.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5655271651) and next prime (5655271679).

It is not a de Polignac number, because 5655271665 - 2¹⁰ = 5655270641 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99495 + ... + 145635.

It is an arithmetic number, because the mean of its divisors is an integer number (565608636).

Almost surely, 2^5655271665 is an apocalyptic number.

It is an amenable number.

5655271665 is a deficient number, since it is larger than the sum of its proper divisors (3394466511).

5655271665 is a wasteful number, since it uses less digits than its factorization.

5655271665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54320.

The product of its digits is 1890000, while the sum is 48.

The square root of 5655271665 is about 75201.5403100229. The cubic root of 5655271665 is about 1781.6312598234.

The spelling of 5655271665 in words is "five billion, six hundred fifty-five million, two hundred seventy-one thousand, six hundred sixty-five".