2161300054164 has 24 divisors (see below), whose sum is σ = 5073231269568. Its totient is φ = 716119378560.

The previous prime is 2161300054157. The next prime is 2161300054247. The reversal of 2161300054164 is 4614500031612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539244517 + ... + 539248524.

It is an arithmetic number, because the mean of its divisors is an integer number (211384636232).

Almost surely, 2^{2161300054164} is an apocalyptic number.

It is an amenable number.

2161300054164 is an abundant number, since it is smaller than the sum of its proper divisors (2911931215404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161300054164 is a wasteful number, since it uses less digits than its factorization.

2161300054164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078493215 (or 1078493213 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 2161300054164 its reverse (4614500031612), we get a palindrome (6775800085776).

The spelling of 2161300054164 in words is "two trillion, one hundred sixty-one billion, three hundred million, fifty-four thousand, one hundred sixty-four".