816160160080 has 20 divisors (see below), whose sum is σ = 1897572372372. Its totient is φ = 326464064000.

The previous prime is 816160160051. The next prime is 816160160143. The reversal of 816160160080 is 80061061618.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 646409568016 + 169750592064 = 803996^2 + 412008^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×816160160080² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5101000921 + ... + 5101001080.

Almost surely, 2^816160160080 is an apocalyptic number.

816160160080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

816160160080 is an abundant number, since it is smaller than the sum of its proper divisors (1081412212292).

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

816160160080 is a wasteful number, since it uses less digits than its factorization.

816160160080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202002014 (or 10202002008 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 816160160080 in words is "eight hundred sixteen billion, one hundred sixty million, one hundred sixty thousand, eighty".