160721175120 has 80 divisors (see below), whose sum is σ = 543529801152. Its totient is φ = 38962708480.

The previous prime is 160721175113. The next prime is 160721175151. The reversal of 160721175120 is 21571127061.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×160721175120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30436977 + ... + 30442256.

Almost surely, 2^160721175120 is an apocalyptic number.

160721175120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160721175120 is an abundant number, since it is smaller than the sum of its proper divisors (382808626032).

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

160721175120 is a wasteful number, since it uses less digits than its factorization.

160721175120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60879260 (or 60879254 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 160721175120 in words is "one hundred sixty billion, seven hundred twenty-one million, one hundred seventy-five thousand, one hundred twenty".