72331351080171 has 4 divisors (see below), whose sum is σ = 96441801440232. Its totient is φ = 48220900720112.

The previous prime is 72331351080137. The next prime is 72331351080211. The reversal of 72331351080171 is 17108015313327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72331351080171 - 2¹⁰ = 72331351079147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72331351080871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12055225180026 + ... + 12055225180031.

It is an arithmetic number, because the mean of its divisors is an integer number (24110450360058).

Almost surely, 2^{72331351080171} is an apocalyptic number.

72331351080171 is a deficient number, since it is larger than the sum of its proper divisors (24110450360061).

72331351080171 is a wasteful number, since it uses less digits than its factorization.

72331351080171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24110450360060.

The product of its (nonzero) digits is 105840, while the sum is 42.

Adding to 72331351080171 its reverse (17108015313327), we get a palindrome (89439366393498).

The spelling of 72331351080171 in words is "seventy-two trillion, three hundred thirty-one billion, three hundred fifty-one million, eighty thousand, one hundred seventy-one".