72271151571 has 16 divisors (see below), whose sum is σ = 96605633664. Its totient is φ = 48058780224.

The previous prime is 72271151567. The next prime is 72271151611. The reversal of 72271151571 is 17515117227.

It is not a de Polignac number, because 72271151571 - 2² = 72271151567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72271151531) 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 15 ways as a sum of consecutive naturals, for example, 8258020 + ... + 8266766.

It is an arithmetic number, because the mean of its divisors is an integer number (6037852104).

Almost surely, 2^72271151571 is an apocalyptic number.

72271151571 is a deficient number, since it is larger than the sum of its proper divisors (24334482093).

72271151571 is a wasteful number, since it uses less digits than its factorization.

72271151571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410.

The product of its digits is 34300, while the sum is 39.

Adding to 72271151571 its reverse (17515117227), we get a palindrome (89786268798).

The spelling of 72271151571 in words is "seventy-two billion, two hundred seventy-one million, one hundred fifty-one thousand, five hundred seventy-one".