172705241071 has 16 divisors (see below), whose sum is σ = 191741074560. Its totient is φ = 154246441120.

The previous prime is 172705241063. The next prime is 172705241099. The reversal of 172705241071 is 170142507271.

It is a cyclic number.

It is not a de Polignac number, because 172705241071 - 2³ = 172705241063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172705241071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172705241171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364960 + ... + 691813.

It is an arithmetic number, because the mean of its divisors is an integer number (11983817160).

Almost surely, 2^172705241071 is an apocalyptic number.

172705241071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172705241071 is a deficient number, since it is larger than the sum of its proper divisors (19035833489).

172705241071 is a wasteful number, since it uses less digits than its factorization.

172705241071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057046.

The product of its (nonzero) digits is 27440, while the sum is 37.

The spelling of 172705241071 in words is "one hundred seventy-two billion, seven hundred five million, two hundred forty-one thousand, seventy-one".