161552160 has 576 divisors, whose sum is σ = 724598784. Its totient is φ = 31795200.

The previous prime is 161552159. The next prime is 161552179. The reversal of 161552160 is 61255161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3437257 + ... + 3437303.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984).

Almost surely, 2^161552160 is an apocalyptic number.

161552160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161552160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362299392).

161552160 is an abundant number, since it is smaller than the sum of its proper divisors (563046624).

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

161552160 is a wasteful number, since it uses less digits than its factorization.

161552160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 161552160 is about 12710.3170692159. The cubic root of 161552160 is about 544.6333813542.

The spelling of 161552160 in words is "one hundred sixty-one million, five hundred fifty-two thousand, one hundred sixty".