161120436632 has 8 divisors (see below), whose sum is σ = 302100818700. Its totient is φ = 80560218312.

The previous prime is 161120436629. The next prime is 161120436691. The reversal of 161120436632 is 236634021161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 161120436592 and 161120436601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070027282 + ... + 10070027297.

Almost surely, 2^161120436632 is an apocalyptic number.

It is an amenable number.

161120436632 is a deficient number, since it is larger than the sum of its proper divisors (140980382068).

161120436632 is a wasteful number, since it uses less digits than its factorization.

161120436632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140054585 (or 20140054581 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 161120436632 its reverse (236634021161), we get a palindrome (397754457793).

The spelling of 161120436632 in words is "one hundred sixty-one billion, one hundred twenty million, four hundred thirty-six thousand, six hundred thirty-two".