20154144300 has 72 divisors (see below), whose sum is σ = 61742829456. Its totient is φ = 5058293760.

The previous prime is 20154144281. The next prime is 20154144301. The reversal of 20154144300 is 344145102.

It is not an unprimeable number, because it can be changed into a prime (20154144301) 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 23 ways as a sum of consecutive naturals, for example, 1970797 + ... + 1980996.

It is an arithmetic number, because the mean of its divisors is an integer number (857539298).

Almost surely, 2^20154144300 is an apocalyptic number.

20154144300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20154144300 is an abundant number, since it is smaller than the sum of its proper divisors (41588685156).

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

20154144300 is a wasteful number, since it uses less digits than its factorization.

20154144300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951827 (or 3951820 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20154144300 its reverse (344145102), we get a palindrome (20498289402).

The spelling of 20154144300 in words is "twenty billion, one hundred fifty-four million, one hundred forty-four thousand, three hundred".