2199881554254 has 160 divisors (see below), whose sum is σ = 5217382342656. Its totient is φ = 691432822080.

The previous prime is 2199881554249. The next prime is 2199881554279. The reversal of 2199881554254 is 4524551889912.

2199881554254 is a `hidden beast` number, since 2 + 1 + 9 + 9 + 8 + 81 + 5 + 542 + 5 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2199881554191 and 2199881554200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 74277909 + ... + 74307519.

Almost surely, 2^{2199881554254} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2199881554254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608691171328).

2199881554254 is an abundant number, since it is smaller than the sum of its proper divisors (3017500788402).

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

2199881554254 is a wasteful number, since it uses less digits than its factorization.

2199881554254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29932 (or 29923 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 63.

The spelling of 2199881554254 in words is "two trillion, one hundred ninety-nine billion, eight hundred eighty-one million, five hundred fifty-four thousand, two hundred fifty-four".