161043506473370 has 32 divisors (see below), whose sum is σ = 311961616031376. Its totient is φ = 59634239616000.

The previous prime is 161043506473361. The next prime is 161043506473391. The reversal of 161043506473370 is 73374605340161.

It can be written as a sum of positive squares in 8 ways, for example, as 96781462791049 + 64262043682321 = 9837757^2 + 8016361^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7764864581 + ... + 7764885320.

Almost surely, 2^{161043506473370} is an apocalyptic number.

161043506473370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161043506473370 is a deficient number, since it is larger than the sum of its proper divisors (150918109558006).

161043506473370 is a wasteful number, since it uses less digits than its factorization.

161043506473370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529749986.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 161043506473370 in words is "one hundred sixty-one trillion, forty-three billion, five hundred six million, four hundred seventy-three thousand, three hundred seventy".