20554311454 has 8 divisors (see below), whose sum is σ = 32454176040. Its totient is φ = 9736252776.

The previous prime is 20554311433. The next prime is 20554311461. The reversal of 20554311454 is 45411345502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 270451429 + ... + 270451504.

It is an arithmetic number, because the mean of its divisors is an integer number (4056772005).

Almost surely, 2^20554311454 is an apocalyptic number.

20554311454 is a deficient number, since it is larger than the sum of its proper divisors (11899864586).

20554311454 is a wasteful number, since it uses less digits than its factorization.

20554311454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540902954.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 20554311454 its reverse (45411345502), we get a palindrome (65965656956).

The spelling of 20554311454 in words is "twenty billion, five hundred fifty-four million, three hundred eleven thousand, four hundred fifty-four".