20616362503 has 8 divisors (see below), whose sum is σ = 22662262656. Its totient is φ = 18599076600.

The previous prime is 20616362497. The next prime is 20616362597. The reversal of 20616362503 is 30526361602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20616362503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20616362003) 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, 7152051 + ... + 7154932.

It is an arithmetic number, because the mean of its divisors is an integer number (2832782832).

Almost surely, 2^20616362503 is an apocalyptic number.

20616362503 is a deficient number, since it is larger than the sum of its proper divisors (2045900153).

20616362503 is a wasteful number, since it uses less digits than its factorization.

20616362503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14307125.

The product of its (nonzero) digits is 38880, while the sum is 34.

Subtracting 20616362503 from its reverse (30526361602), we obtain a palindrome (9909999099).

The spelling of 20616362503 in words is "twenty billion, six hundred sixteen million, three hundred sixty-two thousand, five hundred three".