2120105556630 has 24 divisors (see below), whose sum is σ = 5512274447472. Its totient is φ = 565361481744.

The previous prime is 2120105556619. The next prime is 2120105556631. The reversal of 2120105556630 is 366555010212.

2120105556630 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 10 + 5 + 5 + 5 + 6 + 630 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120105556631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11778364114 + ... + 11778364293.

It is an arithmetic number, because the mean of its divisors is an integer number (229678101978).

Almost surely, 2^{2120105556630} is an apocalyptic number.

2120105556630 is an abundant number, since it is smaller than the sum of its proper divisors (3392168890842).

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

2120105556630 is a wasteful number, since it uses less digits than its factorization.

2120105556630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23556728420 (or 23556728417 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 2120105556630 in words is "two trillion, one hundred twenty billion, one hundred five million, five hundred fifty-six thousand, six hundred thirty".