172057491360 has 576 divisors, whose sum is σ = 648388540800. Its totient is φ = 42962337792.

The previous prime is 172057491313. The next prime is 172057491373. The reversal of 172057491360 is 63194750271.

172057491360 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 574 + 9 + 13 + 60 = 666.

172057491360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65744772 + ... + 65747388.

It is an arithmetic number, because the mean of its divisors is an integer number (1125674550).

Almost surely, 2^172057491360 is an apocalyptic number.

172057491360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172057491360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324194270400).

172057491360 is an abundant number, since it is smaller than the sum of its proper divisors (476331049440).

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

172057491360 is a wasteful number, since it uses less digits than its factorization.

172057491360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 172057491360 in words is "one hundred seventy-two billion, fifty-seven million, four hundred ninety-one thousand, three hundred sixty".