172023075543 has 16 divisors (see below), whose sum is σ = 250500733056. Its totient is φ = 104137513440.

The previous prime is 172023075509. The next prime is 172023075547. The reversal of 172023075543 is 345570320271.

It is not a de Polignac number, because 172023075543 - 2¹⁰ = 172023074519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172023075547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2943021 + ... + 3000902.

It is an arithmetic number, because the mean of its divisors is an integer number (15656295816).

Almost surely, 2^172023075543 is an apocalyptic number.

172023075543 is a deficient number, since it is larger than the sum of its proper divisors (78477657513).

172023075543 is a wasteful number, since it uses less digits than its factorization.

172023075543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944814.

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 172023075543 in words is "one hundred seventy-two billion, twenty-three million, seventy-five thousand, five hundred forty-three".