172374555416 has 64 divisors (see below), whose sum is σ = 379485388800. Its totient is φ = 71853892992.

The previous prime is 172374555403. The next prime is 172374555421. The reversal of 172374555416 is 614555473271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6947465 + ... + 6972231.

It is an arithmetic number, because the mean of its divisors is an integer number (5929459200).

Almost surely, 2^172374555416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172374555416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189742694400).

172374555416 is an abundant number, since it is smaller than the sum of its proper divisors (207110833384).

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

172374555416 is a wasteful number, since it uses less digits than its factorization.

172374555416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28176 (or 28172 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 50.

The spelling of 172374555416 in words is "one hundred seventy-two billion, three hundred seventy-four million, five hundred fifty-five thousand, four hundred sixteen".