161450636 has 24 divisors (see below), whose sum is σ = 285586896. Its totient is φ = 79859520.

The previous prime is 161450587. The next prime is 161450677. The reversal of 161450636 is 636054161.

161450636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 198671 + ... + 199481.

It is an arithmetic number, because the mean of its divisors is an integer number (11899454).

Almost surely, 2^161450636 is an apocalyptic number.

It is an amenable number.

161450636 is a deficient number, since it is larger than the sum of its proper divisors (124136260).

161450636 is a wasteful number, since it uses less digits than its factorization.

161450636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 161450636 is about 12706.3226781001. The cubic root of 161450636 is about 544.5192697135.

The spelling of 161450636 in words is "one hundred sixty-one million, four hundred fifty thousand, six hundred thirty-six".