160506166550531 has 4 divisors (see below), whose sum is σ = 161225925145152. Its totient is φ = 159786407955912.

The previous prime is 160506166550519. The next prime is 160506166550539. The reversal of 160506166550531 is 135055661605061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160506166550531 is a prime.

It is a super-2 number, since 2×160506166550531² (a number of 29 digits) contains 22 as substring.

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 160506166550531.

It is not an unprimeable number, because it can be changed into a prime (160506166550539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359879296976 + ... + 359879297421.

It is an arithmetic number, because the mean of its divisors is an integer number (40306481286288).

Almost surely, 2^{160506166550531} is an apocalyptic number.

160506166550531 is a deficient number, since it is larger than the sum of its proper divisors (719758594621).

160506166550531 is an equidigital number, since it uses as much as digits as its factorization.

160506166550531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719758594620.

The product of its (nonzero) digits is 2430000, while the sum is 50.

The spelling of 160506166550531 in words is "one hundred sixty trillion, five hundred six billion, one hundred sixty-six million, five hundred fifty thousand, five hundred thirty-one".