172144458336 has 96 divisors (see below), whose sum is σ = 491391865440. Its totient is φ = 52546461696.

The previous prime is 172144458263. The next prime is 172144458337. The reversal of 172144458336 is 633854441271.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172144458337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365031 + ... + 1485798.

It is an arithmetic number, because the mean of its divisors is an integer number (5118665265).

Almost surely, 2^172144458336 is an apocalyptic number.

172144458336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172144458336 is an abundant number, since it is smaller than the sum of its proper divisors (319247407104).

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

172144458336 is a wasteful number, since it uses less digits than its factorization.

172144458336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850896 (or 2850888 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The spelling of 172144458336 in words is "one hundred seventy-two billion, one hundred forty-four million, four hundred fifty-eight thousand, three hundred thirty-six".