161122752346512 has 160 divisors (see below), whose sum is σ = 481846298434560. Its totient is φ = 45910683343360.

The previous prime is 161122752346481. The next prime is 161122752346519. The reversal of 161122752346512 is 215643257221161.

It is a super-2 number, since 2×161122752346512² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (161122752346519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111721503 + ... + 113154494.

It is an arithmetic number, because the mean of its divisors is an integer number (3011539365216).

Almost surely, 2^{161122752346512} is an apocalyptic number.

161122752346512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161122752346512 is an abundant number, since it is smaller than the sum of its proper divisors (320723546088048).

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

161122752346512 is a wasteful number, since it uses less digits than its factorization.

161122752346512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224876101 (or 224876095 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The spelling of 161122752346512 in words is "one hundred sixty-one trillion, one hundred twenty-two billion, seven hundred fifty-two million, three hundred forty-six thousand, five hundred twelve".