2160055505421 has 24 divisors (see below), whose sum is σ = 3403866394656. Its totient is φ = 1309069715040.

The previous prime is 2160055505383. The next prime is 2160055505423. The reversal of 2160055505421 is 1245055500612.

2160055505421 is a `hidden beast` number, since 2 + 1 + 60 + 0 + 5 + 5 + 50 + 542 + 1 = 666.

It is not a de Polignac number, because 2160055505421 - 2⁶ = 2160055505357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160055505423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1984086 + ... + 2873448.

It is an arithmetic number, because the mean of its divisors is an integer number (141827766444).

Almost surely, 2^{2160055505421} is an apocalyptic number.

It is an amenable number.

2160055505421 is a deficient number, since it is larger than the sum of its proper divisors (1243810889235).

2160055505421 is a wasteful number, since it uses less digits than its factorization.

2160055505421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913913 (or 913910 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 2160055505421 in words is "two trillion, one hundred sixty billion, fifty-five million, five hundred five thousand, four hundred twenty-one".