161027370 has 96 divisors (see below), whose sum is σ = 499329792. Its totient is φ = 35202816.

The previous prime is 161027369. The next prime is 161027407. The reversal of 161027370 is 73720161.

It is a Curzon 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, 8934 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (5201352).

Almost surely, 2^161027370 is an apocalyptic number.

161027370 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 161027370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249664896).

161027370 is an abundant number, since it is smaller than the sum of its proper divisors (338302422).

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

161027370 is a wasteful number, since it uses less digits than its factorization.

161027370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11153 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 161027370 is about 12689.6560237069. The cubic root of 161027370 is about 544.0430081518.

The spelling of 161027370 in words is "one hundred sixty-one million, twenty-seven thousand, three hundred seventy".