165443983354 has 8 divisors (see below), whose sum is σ = 267255665460. Its totient is φ = 76358761536.

The previous prime is 165443983351. The next prime is 165443983363. The reversal of 165443983354 is 453389344561.

It can be written as a sum of positive squares in 2 ways, for example, as 159572286225 + 5871697129 = 399465^2 + 76627^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 165443983295 and 165443983304.

It is not an unprimeable number, because it can be changed into a prime (165443983351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3181615039 + ... + 3181615090.

Almost surely, 2^165443983354 is an apocalyptic number.

165443983354 is a deficient number, since it is larger than the sum of its proper divisors (101811682106).

165443983354 is a wasteful number, since it uses less digits than its factorization.

165443983354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363230144.

The product of its digits is 18662400, while the sum is 55.

The spelling of 165443983354 in words is "one hundred sixty-five billion, four hundred forty-three million, nine hundred eighty-three thousand, three hundred fifty-four".