2120450440554 has 64 divisors (see below), whose sum is σ = 4996323561600. Its totient is φ = 664728177024.

The previous prime is 2120450440547. The next prime is 2120450440567. The reversal of 2120450440554 is 4550440540212.

2120450440554 is a `hidden beast` number, since 2 + 1 + 20 + 45 + 0 + 4 + 40 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7402197 + ... + 7683320.

It is an arithmetic number, because the mean of its divisors is an integer number (78067555650).

Almost surely, 2^{2120450440554} is an apocalyptic number.

2120450440554 is an abundant number, since it is smaller than the sum of its proper divisors (2875873121046).

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

2120450440554 is a wasteful number, since it uses less digits than its factorization.

2120450440554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15085684 (or 15085678 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 2120450440554 its reverse (4550440540212), we get a palindrome (6670890980766).

The spelling of 2120450440554 in words is "two trillion, one hundred twenty billion, four hundred fifty million, four hundred forty thousand, five hundred fifty-four".