161659038 has 24 divisors (see below), whose sum is σ = 330370632. Its totient is φ = 52735504.

The previous prime is 161659037. The next prime is 161659067. The reversal of 161659038 is 830956161.

161659038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161659038² = 52267289134170888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161658987 and 161659005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161659033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7156 + ... + 19352.

It is an arithmetic number, because the mean of its divisors is an integer number (13765443).

Almost surely, 2^161659038 is an apocalyptic number.

161659038 is an abundant number, since it is smaller than the sum of its proper divisors (168711594).

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

161659038 is a wasteful number, since it uses less digits than its factorization.

161659038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296 (or 12249 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 161659038 is about 12714.5207538468. The cubic root of 161659038 is about 544.7534591766.

The spelling of 161659038 in words is "one hundred sixty-one million, six hundred fifty-nine thousand, thirty-eight".