161506108 has 12 divisors (see below), whose sum is σ = 289208920. Its totient is φ = 78874992.

The previous prime is 161506097. The next prime is 161506109. The reversal of 161506108 is 801605161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161506109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469323 + ... + 469666.

Almost surely, 2^161506108 is an apocalyptic number.

It is an amenable number.

161506108 is a deficient number, since it is larger than the sum of its proper divisors (127702812).

161506108 is a wasteful number, since it uses less digits than its factorization.

161506108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939036 (or 939034 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 161506108 is about 12708.5053409124. The cubic root of 161506108 is about 544.5816254381.

The spelling of 161506108 in words is "one hundred sixty-one million, five hundred six thousand, one hundred eight".