71371513155 has 32 divisors (see below), whose sum is σ = 119031277824. Its totient is φ = 36483232896.

The previous prime is 71371513139. The next prime is 71371513181. The reversal of 71371513155 is 55131517317.

It is not a de Polignac number, because 71371513155 - 2⁴ = 71371513139 is a prime.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 922497 + ... + 996866.

It is an arithmetic number, because the mean of its divisors is an integer number (3719727432).

Almost surely, 2^71371513155 is an apocalyptic number.

71371513155 is a deficient number, since it is larger than the sum of its proper divisors (47659764669).

71371513155 is a wasteful number, since it uses less digits than its factorization.

71371513155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919475.

The product of its digits is 55125, while the sum is 39.

The spelling of 71371513155 in words is "seventy-one billion, three hundred seventy-one million, five hundred thirteen thousand, one hundred fifty-five".