71365916736 has 63 divisors (see below), whose sum is σ = 204575893743. Its totient is φ = 23786501760.

The previous prime is 71365916719. The next prime is 71365916753. The reversal of 71365916736 is 63761956317.

The square root of 71365916736 is 267144.

It is a perfect power (a square), and thus also a powerful number.

71365916736 is a `hidden beast` number, since 7 + 13 + 6 + 591 + 6 + 7 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (71365916719) and next prime (71365916753).

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 8 ways as a sum of consecutive naturals, for example, 6405891 + ... + 6417021.

Almost surely, 2^71365916736 is an apocalyptic number.

71365916736 is the 267144-th square number.

It is an amenable number.

71365916736 is an abundant number, since it is smaller than the sum of its proper divisors (133209977007).

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

71365916736 is an frugal number, since it uses more digits than its factorization.

71365916736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22280 (or 11136 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The spelling of 71365916736 in words is "seventy-one billion, three hundred sixty-five million, nine hundred sixteen thousand, seven hundred thirty-six".