172485169560 has 192 divisors, whose sum is σ = 612225319680. Its totient is φ = 41767614720.

The previous prime is 172485169547. The next prime is 172485169627. The reversal of 172485169560 is 65961584271.

It is a happy number.

172485169560 is a `hidden beast` number, since 1 + 7 + 2 + 485 + 16 + 95 + 60 = 666.

It is a super-2 number, since 2×172485169560² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172485169497 and 172485169506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3567709 + ... + 3615731.

It is an arithmetic number, because the mean of its divisors is an integer number (3188673540).

Almost surely, 2^172485169560 is an apocalyptic number.

172485169560 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 172485169560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306112659840).

172485169560 is an abundant number, since it is smaller than the sum of its proper divisors (439740150120).

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

172485169560 is a wasteful number, since it uses less digits than its factorization.

172485169560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48958 (or 48951 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 172485169560 in words is "one hundred seventy-two billion, four hundred eighty-five million, one hundred sixty-nine thousand, five hundred sixty".