160705216715021 has 12 divisors (see below), whose sum is σ = 176651762939232. Its totient is φ = 146088341289000.

The previous prime is 160705216715011. The next prime is 160705216715041. The reversal of 160705216715021 is 120517612507061.

It is not a de Polignac number, because 160705216715021 - 2¹⁰ = 160705216713997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160705216715011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30799595 + ... + 35637416.

It is an arithmetic number, because the mean of its divisors is an integer number (14720980244936).

Almost surely, 2^{160705216715021} is an apocalyptic number.

160705216715021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

160705216715021 is a deficient number, since it is larger than the sum of its proper divisors (15946546224211).

160705216715021 is a wasteful number, since it uses less digits than its factorization.

160705216715021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66457024 (or 66457013 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 160705216715021 in words is "one hundred sixty trillion, seven hundred five billion, two hundred sixteen million, seven hundred fifteen thousand, twenty-one".