160617820 has 72 divisors (see below), whose sum is σ = 382886784. Its totient is φ = 56496000.

The previous prime is 160617817. The next prime is 160617839. The reversal of 160617820 is 28716061.

160617820 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 (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73950 + ... + 76090.

It is an arithmetic number, because the mean of its divisors is an integer number (5317872).

Almost surely, 2^160617820 is an apocalyptic number.

160617820 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 160617820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191443392).

160617820 is an abundant number, since it is smaller than the sum of its proper divisors (222268964).

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

160617820 is a wasteful number, since it uses less digits than its factorization.

160617820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2190 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 160617820 is about 12673.5085907573. The cubic root of 160617820 is about 543.5813848082.

The spelling of 160617820 in words is "one hundred sixty million, six hundred seventeen thousand, eight hundred twenty".