161001560112 has 40 divisors (see below), whose sum is σ = 415981429056. Its totient is φ = 53659350336.

The previous prime is 161001560101. The next prime is 161001560131. The reversal of 161001560112 is 211065100161.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 92043 + ... + 574869.

Almost surely, 2^161001560112 is an apocalyptic number.

161001560112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161001560112 is an abundant number, since it is smaller than the sum of its proper divisors (254979868944).

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

161001560112 is a wasteful number, since it uses less digits than its factorization.

161001560112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489785 (or 489779 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 161001560112 its reverse (211065100161), we get a palindrome (372066660273).

The spelling of 161001560112 in words is "one hundred sixty-one billion, one million, five hundred sixty thousand, one hundred twelve".