2106542154400 has 36 divisors (see below), whose sum is σ = 5142596036382. Its totient is φ = 842616861440.

The previous prime is 2106542154331. The next prime is 2106542154449. The reversal of 2106542154400 is 44512456012.

It can be written as a sum of positive squares in 3 ways, for example, as 1734183469456 + 372358684944 = 1316884^2 + 610212^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1316588047 + ... + 1316589646.

Almost surely, 2^{2106542154400} is an apocalyptic number.

2106542154400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106542154400 is an abundant number, since it is smaller than the sum of its proper divisors (3036053881982).

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

2106542154400 is a wasteful number, since it uses less digits than its factorization.

2106542154400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633177713 (or 2633177700 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 2106542154400 in words is "two trillion, one hundred six billion, five hundred forty-two million, one hundred fifty-four thousand, four hundred".