20516033463 has 8 divisors (see below), whose sum is σ = 27870838128. Its totient is φ = 13419292224.

The previous prime is 20516033413. The next prime is 20516033539. The reversal of 20516033463 is 36433061502.

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

It is not a de Polignac number, because 20516033463 - 2⁹ = 20516032951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20516033413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64515670 + ... + 64515987.

It is an arithmetic number, because the mean of its divisors is an integer number (3483854766).

Almost surely, 2^20516033463 is an apocalyptic number.

20516033463 is a deficient number, since it is larger than the sum of its proper divisors (7354804665).

20516033463 is a wasteful number, since it uses less digits than its factorization.

20516033463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129031713.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 20516033463 its reverse (36433061502), we get a palindrome (56949094965).

The spelling of 20516033463 in words is "twenty billion, five hundred sixteen million, thirty-three thousand, four hundred sixty-three".