161186675944 has 32 divisors (see below), whose sum is σ = 346086760320. Its totient is φ = 68942655936.

The previous prime is 161186675929. The next prime is 161186675957. The reversal of 161186675944 is 449576681161.

It is a happy number.

It is a super-2 number, since 2×161186675944² (a number of 23 digits) contains 22 as substring.

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, 2832999 + ... + 2889334.

It is an arithmetic number, because the mean of its divisors is an integer number (10815211260).

Almost surely, 2^161186675944 is an apocalyptic number.

161186675944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161186675944 is an abundant number, since it is smaller than the sum of its proper divisors (184900084376).

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

161186675944 is a wasteful number, since it uses less digits than its factorization.

161186675944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722849 (or 5722845 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The spelling of 161186675944 in words is "one hundred sixty-one billion, one hundred eighty-six million, six hundred seventy-five thousand, nine hundred forty-four".