161101350 has 72 divisors (see below), whose sum is σ = 458307720. Its totient is φ = 40431360.

The previous prime is 161101331. The next prime is 161101357. The reversal of 161101350 is 53101161.

161101350 is a `hidden beast` number, since 1 + 611 + 0 + 1 + 3 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161101357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2880 + ... + 18179.

It is an arithmetic number, because the mean of its divisors is an integer number (6365385).

Almost surely, 2^161101350 is an apocalyptic number.

161101350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161101350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229153860).

161101350 is an abundant number, since it is smaller than the sum of its proper divisors (297206370).

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

161101350 is a wasteful number, since it uses less digits than its factorization.

161101350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21094 (or 21086 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 161101350 is about 12692.5706616115. The cubic root of 161101350 is about 544.1263110495.

The spelling of 161101350 in words is "one hundred sixty-one million, one hundred one thousand, three hundred fifty".