20154044214 has 64 divisors (see below), whose sum is σ = 45916416000. Its totient is φ = 6548834880.

The previous prime is 20154044213. The next prime is 20154044227. The reversal of 20154044214 is 41244045102.

20154044214 is a `hidden beast` number, since 201 + 5 + 4 + 0 + 442 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154044213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3448707 + ... + 3454545.

It is an arithmetic number, because the mean of its divisors is an integer number (717444000).

Almost surely, 2^20154044214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20154044214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22958208000).

20154044214 is an abundant number, since it is smaller than the sum of its proper divisors (25762371786).

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

20154044214 is a wasteful number, since it uses less digits than its factorization.

20154044214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450 (or 7444 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 20154044214 its reverse (41244045102), we get a palindrome (61398089316).

The spelling of 20154044214 in words is "twenty billion, one hundred fifty-four million, forty-four thousand, two hundred fourteen".