72010550057171 has 4 divisors (see below), whose sum is σ = 78556963698744. Its totient is φ = 65464136415600.

The previous prime is 72010550057123. The next prime is 72010550057219. The reversal of 72010550057171 is 17175005501027.

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

It is an interprime number because it is at equal distance from previous prime (72010550057123) and next prime (72010550057219).

It is a cyclic number.

It is not a de Polignac number, because 72010550057171 - 2²² = 72010545862867 is a prime.

It is a super-2 number, since 2×72010550057171² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72010550357171) 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, 3273206820770 + ... + 3273206820791.

It is an arithmetic number, because the mean of its divisors is an integer number (19639240924686).

Almost surely, 2^{72010550057171} is an apocalyptic number.

72010550057171 is a deficient number, since it is larger than the sum of its proper divisors (6546413641573).

72010550057171 is a wasteful number, since it uses less digits than its factorization.

72010550057171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6546413641572.

The product of its (nonzero) digits is 85750, while the sum is 41.

Adding to 72010550057171 its reverse (17175005501027), we get a palindrome (89185555558198).

The spelling of 72010550057171 in words is "seventy-two trillion, ten billion, five hundred fifty million, fifty-seven thousand, one hundred seventy-one".