173640890071322 has 16 divisors (see below), whose sum is σ = 260982111109320. Its totient is φ = 86646916550208.

The previous prime is 173640890071321. The next prime is 173640890071351. The reversal of 173640890071322 is 223170098046371.

It can be written as a sum of positive squares in 4 ways, for example, as 171130848726601 + 2510041344721 = 13081699^2 + 1584311^2 .

It is a super-2 number, since 2×173640890071322² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (173640890071321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10407473 + ... + 21344724.

Almost surely, 2^{173640890071322} is an apocalyptic number.

173640890071322 is a deficient number, since it is larger than the sum of its proper divisors (87341221037998).

173640890071322 is a wasteful number, since it uses less digits than its factorization.

173640890071322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31757665.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 173640890071322 in words is "one hundred seventy-three trillion, six hundred forty billion, eight hundred ninety million, seventy-one thousand, three hundred twenty-two".