160669440 has 144 divisors (see below), whose sum is σ = 570276000. Its totient is φ = 42835968.

The previous prime is 160669433. The next prime is 160669441. The reversal of 160669440 is 44966061.

160669440 is a `hidden beast` number, since 1 + 606 + 6 + 9 + 4 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 160669395 and 160669404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160669441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32236 + ... + 36884.

It is an arithmetic number, because the mean of its divisors is an integer number (3960250).

Almost surely, 2^160669440 is an apocalyptic number.

160669440 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 160669440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285138000).

160669440 is an abundant number, since it is smaller than the sum of its proper divisors (409606560).

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

160669440 is an equidigital number, since it uses as much as digits as its factorization.

160669440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 160669440 is about 12675.5449586990. The cubic root of 160669440 is about 543.6396113604.

The spelling of 160669440 in words is "one hundred sixty million, six hundred sixty-nine thousand, four hundred forty".