160766640 has 160 divisors (see below), whose sum is σ = 557821440. Its totient is φ = 42557184.

The previous prime is 160766609. The next prime is 160766647. The reversal of 160766640 is 46667061.

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 = 160766595 and 160766604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160766647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567939 + ... + 568221.

It is an arithmetic number, because the mean of its divisors is an integer number (3486384).

Almost surely, 2^160766640 is an apocalyptic number.

160766640 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 160766640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278910720).

160766640 is an abundant number, since it is smaller than the sum of its proper divisors (397054800).

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

160766640 is a wasteful number, since it uses less digits than its factorization.

160766640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 160766640 is about 12679.3785336664. The cubic root of 160766640 is about 543.7492175970.

The spelling of 160766640 in words is "one hundred sixty million, seven hundred sixty-six thousand, six hundred forty".