160778880 has 192 divisors, whose sum is σ = 562648320. Its totient is φ = 42301440.

The previous prime is 160778873. The next prime is 160778887. The reversal of 160778880 is 88877061.

It is an interprime number because it is at equal distance from previous prime (160778873) and next prime (160778887).

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (160778887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 593145 + ... + 593415.

It is an arithmetic number, because the mean of its divisors is an integer number (2930460).

Almost surely, 2^160778880 is an apocalyptic number.

160778880 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 160778880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281324160).

160778880 is an abundant number, since it is smaller than the sum of its proper divisors (401869440).

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

160778880 is a wasteful number, since it uses less digits than its factorization.

160778880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 160778880 is about 12679.8611979785. The cubic root of 160778880 is about 543.7630167316.

The spelling of 160778880 in words is "one hundred sixty million, seven hundred seventy-eight thousand, eight hundred eighty".