161432019002 has 8 divisors (see below), whose sum is σ = 242268088116. Its totient is φ = 80675989632.

The previous prime is 161432018983. The next prime is 161432019013. The reversal of 161432019002 is 200910234161.

It can be written as a sum of positive squares in 2 ways, for example, as 161410294081 + 21724921 = 401759^2 + 4661^2 .

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, 20004893 + ... + 20012960.

Almost surely, 2^161432019002 is an apocalyptic number.

161432019002 is a deficient number, since it is larger than the sum of its proper divisors (80836069114).

161432019002 is a wasteful number, since it uses less digits than its factorization.

161432019002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40019872.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 161432019002 in words is "one hundred sixty-one billion, four hundred thirty-two million, nineteen thousand, two".