160322645640 has 256 divisors, whose sum is σ = 498161664000. Its totient is φ = 41254272000.

The previous prime is 160322645629. The next prime is 160322645647. The reversal of 160322645640 is 46546223061.

160322645640 is a nontrivial binomial coefficient, being equal to C(566256, 2).

It is a super-2 number, since 2×160322645640² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (160322645647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154304241 + ... + 154305279.

It is an arithmetic number, because the mean of its divisors is an integer number (1945944000).

Almost surely, 2^160322645640 is an apocalyptic number.

160322645640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160322645640 is the 566255-th triangular number and also the 283128-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160322645640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249080832000).

160322645640 is an abundant number, since it is smaller than the sum of its proper divisors (337839018360).

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

160322645640 is a wasteful number, since it uses less digits than its factorization.

160322645640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 160322645640 in words is "one hundred sixty billion, three hundred twenty-two million, six hundred forty-five thousand, six hundred forty".