172471263544056 has 256 divisors, whose sum is σ = 484861749120000. Its totient is φ = 50837261606912.

The previous prime is 172471263544051. The next prime is 172471263544157. The reversal of 172471263544056 is 650445362174271.

172471263544056 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172471263544056² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172471263543987 and 172471263544005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172471263544051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 680316490 + ... + 680569958.

It is an arithmetic number, because the mean of its divisors is an integer number (1893991207500).

Almost surely, 2^{172471263544056} 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 172471263544056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242430874560000).

172471263544056 is an abundant number, since it is smaller than the sum of its proper divisors (312390485575944).

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

172471263544056 is a wasteful number, since it uses less digits than its factorization.

172471263544056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254806 (or 254802 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 172471263544056 in words is "one hundred seventy-two trillion, four hundred seventy-one billion, two hundred sixty-three million, five hundred forty-four thousand, fifty-six".