171458857146 has 16 divisors (see below), whose sum is σ = 343379254464. Its totient is φ = 57076029024.

The previous prime is 171458857133. The next prime is 171458857153. The reversal of 171458857146 is 641758854171.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19226011 + ... + 19234926.

It is an arithmetic number, because the mean of its divisors is an integer number (21461203404).

Almost surely, 2^171458857146 is an apocalyptic number.

171458857146 is an abundant number, since it is smaller than the sum of its proper divisors (171920397318).

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

171458857146 is a wasteful number, since it uses less digits than its factorization.

171458857146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38461685.

The product of its digits is 7526400, while the sum is 57.

The spelling of 171458857146 in words is "one hundred seventy-one billion, four hundred fifty-eight million, eight hundred fifty-seven thousand, one hundred forty-six".