2161032145546 has 8 divisors (see below), whose sum is σ = 3241974368160. Its totient is φ = 1080374022828.

The previous prime is 2161032145537. The next prime is 2161032145549. The reversal of 2161032145546 is 6455412301612.

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 = 2161032145499 and 2161032145508.

It is not an unprimeable number, because it can be changed into a prime (2161032145549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71005956 + ... + 71036383.

It is an arithmetic number, because the mean of its divisors is an integer number (405246796020).

Almost surely, 2^{2161032145546} is an apocalyptic number.

2161032145546 is a deficient number, since it is larger than the sum of its proper divisors (1080942222614).

2161032145546 is a wasteful number, since it uses less digits than its factorization.

2161032145546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142049948.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 2161032145546 in words is "two trillion, one hundred sixty-one billion, thirty-two million, one hundred forty-five thousand, five hundred forty-six".