161963036 has 6 divisors (see below), whose sum is σ = 283435320. Its totient is φ = 80981516.

The previous prime is 161962993. The next prime is 161963041. The reversal of 161963036 is 630369161.

161963036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161962987 and 161963005.

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, 20245376 + ... + 20245383.

It is an arithmetic number, because the mean of its divisors is an integer number (47239220).

Almost surely, 2^161963036 is an apocalyptic number.

It is an amenable number.

161963036 is a deficient number, since it is larger than the sum of its proper divisors (121472284).

161963036 is a wasteful number, since it uses less digits than its factorization.

161963036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40490763 (or 40490761 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 161963036 is about 12726.4698954580. The cubic root of 161963036 is about 545.0947129392.

The spelling of 161963036 in words is "one hundred sixty-one million, nine hundred sixty-three thousand, thirty-six".