71255175655 has 4 divisors (see below), whose sum is σ = 85506210792. Its totient is φ = 57004140520.

The previous prime is 71255175637. The next prime is 71255175679. The reversal of 71255175655 is 55657155217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55657155217 = 859 ⋅64792963.

It is not a de Polignac number, because 71255175655 - 2³³ = 62665241063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71255175599 and 71255175608.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7125517561 + ... + 7125517570.

It is an arithmetic number, because the mean of its divisors is an integer number (21376552698).

Almost surely, 2^71255175655 is an apocalyptic number.

71255175655 is a deficient number, since it is larger than the sum of its proper divisors (14251035137).

71255175655 is a wasteful number, since it uses less digits than its factorization.

71255175655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14251035136.

The product of its digits is 1837500, while the sum is 49.

The spelling of 71255175655 in words is "seventy-one billion, two hundred fifty-five million, one hundred seventy-five thousand, six hundred fifty-five".