161042213513112 has 32 divisors (see below), whose sum is σ = 402608965023600. Its totient is φ = 53680280338944.

The previous prime is 161042213513081. The next prime is 161042213513143. The reversal of 161042213513112 is 211315312240161.

It is an interprime number because it is at equal distance from previous prime (161042213513081) and next prime (161042213513143).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25713037 + ... + 31356732.

Almost surely, 2^{161042213513112} is an apocalyptic number.

161042213513112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161042213513112 is an abundant number, since it is smaller than the sum of its proper divisors (241566751510488).

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

161042213513112 is a wasteful number, since it uses less digits than its factorization.

161042213513112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57187355 (or 57187351 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 161042213513112 its reverse (211315312240161), we get a palindrome (372357525753273).

The spelling of 161042213513112 in words is "one hundred sixty-one trillion, forty-two billion, two hundred thirteen million, five hundred thirteen thousand, one hundred twelve".