71056711515270 has 64 divisors (see below), whose sum is σ = 183655527168960. Its totient is φ = 17490763081728.

The previous prime is 71056711515203. The next prime is 71056711515271. The reversal of 71056711515270 is 7251511765017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71056711515271) 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 in 31 ways as a sum of consecutive naturals, for example, 65346186 + ... + 66424674.

It is an arithmetic number, because the mean of its divisors is an integer number (2869617612015).

Almost surely, 2^{71056711515270} is an apocalyptic number.

71056711515270 is an abundant number, since it is smaller than the sum of its proper divisors (112598815653690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71056711515270 is a wasteful number, since it uses less digits than its factorization.

71056711515270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247449.

The product of its (nonzero) digits is 514500, while the sum is 48.

The spelling of 71056711515270 in words is "seventy-one trillion, fifty-six billion, seven hundred eleven million, five hundred fifteen thousand, two hundred seventy".