161740570321322 has 8 divisors (see below), whose sum is σ = 242666538500676. Its totient is φ = 80851724154432.

The previous prime is 161740570321229. The next prime is 161740570321349. The reversal of 161740570321322 is 223123075047161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96682166278681 + 65058404042641 = 9832709^2 + 8065879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9280492223 + ... + 9280509650.

Almost surely, 2^{161740570321322} is an apocalyptic number.

161740570321322 is a deficient number, since it is larger than the sum of its proper divisors (80925968179354).

161740570321322 is a wasteful number, since it uses less digits than its factorization.

161740570321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18561006232.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 161740570321322 in words is "one hundred sixty-one trillion, seven hundred forty billion, five hundred seventy million, three hundred twenty-one thousand, three hundred twenty-two".