161535360 has 384 divisors, whose sum is σ = 640470240. Its totient is φ = 34406400.

The previous prime is 161535337. The next prime is 161535373. The reversal of 161535360 is 63535161.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1599310 + ... + 1599410.

Almost surely, 2^161535360 is an apocalyptic number.

161535360 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 161535360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320235120).

161535360 is an abundant number, since it is smaller than the sum of its proper divisors (478934880).

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

161535360 is a wasteful number, since it uses less digits than its factorization.

161535360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 161535360 is about 12709.6561715886. The cubic root of 161535360 is about 544.6145016768.

The spelling of 161535360 in words is "one hundred sixty-one million, five hundred thirty-five thousand, three hundred sixty".