161396064 has 120 divisors (see below), whose sum is σ = 481895568. Its totient is φ = 52980480.

The previous prime is 161396063. The next prime is 161396141. The reversal of 161396064 is 460693161.

161396064 is a `hidden beast` number, since 16 + 1 + 39 + 606 + 4 = 666.

161396064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161396063) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 183594 + ... + 184470.

Almost surely, 2^161396064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161396064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240947784).

161396064 is an abundant number, since it is smaller than the sum of its proper divisors (320499504).

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

161396064 is an equidigital number, since it uses as much as digits as its factorization.

161396064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 161396064 is about 12704.1750617661. The cubic root of 161396064 is about 544.4579117344.

The spelling of 161396064 in words is "one hundred sixty-one million, three hundred ninety-six thousand, sixty-four".