1672633122161 has 4 divisors (see below), whose sum is σ = 1760666444400. Its totient is φ = 1584599799924.

The previous prime is 1672633122151. The next prime is 1672633122187. The reversal of 1672633122161 is 1612213362761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1672633122161 - 2²² = 1672628927857 is a prime.

It is a super-2 number, since 2×1672633122161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672633122151) 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, 44016661091 + ... + 44016661128.

It is an arithmetic number, because the mean of its divisors is an integer number (440166611100).

Almost surely, 2^{1672633122161} is an apocalyptic number.

It is an amenable number.

1672633122161 is a deficient number, since it is larger than the sum of its proper divisors (88033322239).

1672633122161 is an equidigital number, since it uses as much as digits as its factorization.

1672633122161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88033322238.

The product of its digits is 108864, while the sum is 41.

The spelling of 1672633122161 in words is "one trillion, six hundred seventy-two billion, six hundred thirty-three million, one hundred twenty-two thousand, one hundred sixty-one".