161434138348 has 18 divisors (see below), whose sum is σ = 328633782036. Its totient is φ = 69186059208.

The previous prime is 161434138321. The next prime is 161434138351. The reversal of 161434138348 is 843831434161.

It is a super-2 number, since 2×161434138348² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161434138298 and 161434138307.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411821586 + ... + 411821977.

Almost surely, 2^161434138348 is an apocalyptic number.

It is an amenable number.

161434138348 is an abundant number, since it is smaller than the sum of its proper divisors (167199643688).

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

161434138348 is a wasteful number, since it uses less digits than its factorization.

161434138348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823643581 (or 823643572 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The spelling of 161434138348 in words is "one hundred sixty-one billion, four hundred thirty-four million, one hundred thirty-eight thousand, three hundred forty-eight".