2161453603211 has 8 divisors (see below), whose sum is σ = 2549917615104. Its totient is φ = 1792910822760.

The previous prime is 2161453603207. The next prime is 2161453603277. The reversal of 2161453603211 is 1123063541612.

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

It is a cyclic number.

It is not a de Polignac number, because 2161453603211 - 2² = 2161453603207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161453603291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4980307625 + ... + 4980308058.

It is an arithmetic number, because the mean of its divisors is an integer number (318739701888).

Almost surely, 2^{2161453603211} is an apocalyptic number.

2161453603211 is a deficient number, since it is larger than the sum of its proper divisors (388464011893).

2161453603211 is an equidigital number, since it uses as much as digits as its factorization.

2161453603211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960615721.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 2161453603211 in words is "two trillion, one hundred sixty-one billion, four hundred fifty-three million, six hundred three thousand, two hundred eleven".