161451360 has 384 divisors, whose sum is σ = 682214400. Its totient is φ = 34836480.

The previous prime is 161451293. The next prime is 161451361. The reversal of 161451360 is 63154161.

161451360 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161451361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 574420 + ... + 574700.

It is an arithmetic number, because the mean of its divisors is an integer number (1776600).

Almost surely, 2^161451360 is an apocalyptic number.

161451360 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 161451360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341107200).

161451360 is an abundant number, since it is smaller than the sum of its proper divisors (520763040).

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

161451360 is a wasteful number, since it uses less digits than its factorization.

161451360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 161451360 is about 12706.3511678215. The cubic root of 161451360 is about 544.5200836493.

The spelling of 161451360 in words is "one hundred sixty-one million, four hundred fifty-one thousand, three hundred sixty".