20554033454 has 16 divisors (see below), whose sum is σ = 31566865968. Its totient is φ = 10032029952.

The previous prime is 20554033453. The next prime is 20554033457. The reversal of 20554033454 is 45433045502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554033453) 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 7 ways as a sum of consecutive naturals, for example, 75524 + ... + 216360.

It is an arithmetic number, because the mean of its divisors is an integer number (1972929123).

Almost surely, 2^20554033454 is an apocalyptic number.

20554033454 is a deficient number, since it is larger than the sum of its proper divisors (11012832514).

20554033454 is a wasteful number, since it uses less digits than its factorization.

20554033454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142579.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 20554033454 its reverse (45433045502), we get a palindrome (65987078956).

The spelling of 20554033454 in words is "twenty billion, five hundred fifty-four million, thirty-three thousand, four hundred fifty-four".