20533413454 has 16 divisors (see below), whose sum is σ = 31323913920. Its totient is φ = 10093224960.

The previous prime is 20533413443. The next prime is 20533413457. The reversal of 20533413454 is 45431433502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533413457) 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, 242067 + ... + 315694.

It is an arithmetic number, because the mean of its divisors is an integer number (1957744620).

Almost surely, 2^20533413454 is an apocalyptic number.

20533413454 is a deficient number, since it is larger than the sum of its proper divisors (10790500466).

20533413454 is a wasteful number, since it uses less digits than its factorization.

20533413454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558075.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 20533413454 its reverse (45431433502), we get a palindrome (65964846956).

The spelling of 20533413454 in words is "twenty billion, five hundred thirty-three million, four hundred thirteen thousand, four hundred fifty-four".