20433405554 has 8 divisors (see below), whose sum is σ = 31362901680. Its totient is φ = 9979104996.

The previous prime is 20433405541. The next prime is 20433405593. The reversal of 20433405554 is 45550433402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118798784 + ... + 118798955.

It is an arithmetic number, because the mean of its divisors is an integer number (3920362710).

Almost surely, 2^20433405554 is an apocalyptic number.

20433405554 is a deficient number, since it is larger than the sum of its proper divisors (10929496126).

20433405554 is a wasteful number, since it uses less digits than its factorization.

20433405554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237597784.

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

Adding to 20433405554 its reverse (45550433402), we get a palindrome (65983838956).

The spelling of 20433405554 in words is "twenty billion, four hundred thirty-three million, four hundred five thousand, five hundred fifty-four".