161024443100 has 36 divisors (see below), whose sum is σ = 349634278224. Its totient is φ = 64370839680.

The previous prime is 161024443093. The next prime is 161024443133. The reversal of 161024443100 is 1344420161.

It is a happy number.

It is a super-2 number, since 2×161024443100² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161024443100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320192 + ... + 651591.

It is an arithmetic number, because the mean of its divisors is an integer number (9712063284).

Almost surely, 2^161024443100 is an apocalyptic number.

161024443100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161024443100 is an abundant number, since it is smaller than the sum of its proper divisors (188609835124).

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

161024443100 is a wasteful number, since it uses less digits than its factorization.

161024443100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973454 (or 973447 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 161024443100 its reverse (1344420161), we get a palindrome (162368863261).

The spelling of 161024443100 in words is "one hundred sixty-one billion, twenty-four million, four hundred forty-three thousand, one hundred".