171370745672 has 32 divisors (see below), whose sum is σ = 367236376320. Its totient is φ = 73441935360.

The previous prime is 171370745671. The next prime is 171370745723. The reversal of 171370745672 is 276547073171.

It is a self number, because there is not a number n which added to its sum of digits gives 171370745672.

It is not an unprimeable number, because it can be changed into a prime (171370745671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2758472 + ... + 2819912.

It is an arithmetic number, because the mean of its divisors is an integer number (11476136760).

Almost surely, 2^171370745672 is an apocalyptic number.

It is an amenable number.

171370745672 is an abundant number, since it is smaller than the sum of its proper divisors (195865630648).

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

171370745672 is a wasteful number, since it uses less digits than its factorization.

171370745672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111261 (or 111257 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 171370745672 in words is "one hundred seventy-one billion, three hundred seventy million, seven hundred forty-five thousand, six hundred seventy-two".