172057166260 has 288 divisors, whose sum is σ = 451742054400. Its totient is φ = 54691983360.

The previous prime is 172057166249. The next prime is 172057166261. The reversal of 172057166260 is 62661750271.

It is a super-2 number, since 2×172057166260² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172057166261) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442306146 + ... + 442306534.

It is an arithmetic number, because the mean of its divisors is an integer number (1568548800).

Almost surely, 2^172057166260 is an apocalyptic number.

172057166260 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 172057166260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225871027200).

172057166260 is an abundant number, since it is smaller than the sum of its proper divisors (279684888140).

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

172057166260 is a wasteful number, since it uses less digits than its factorization.

172057166260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 172057166260 in words is "one hundred seventy-two billion, fifty-seven million, one hundred sixty-six thousand, two hundred sixty".