20683653003 has 48 divisors (see below), whose sum is σ = 34656620544. Its totient is φ = 11782203840.

The previous prime is 20683652993. The next prime is 20683653017. The reversal of 20683653003 is 30035638602.

It is a happy number.

It is not a de Polignac number, because 20683653003 - 2⁵ = 20683652971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20683653043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40551 + ... + 207392.

It is an arithmetic number, because the mean of its divisors is an integer number (722012928).

Almost surely, 2^20683653003 is an apocalyptic number.

20683653003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20683653003 is a deficient number, since it is larger than the sum of its proper divisors (13972967541).

20683653003 is a wasteful number, since it uses less digits than its factorization.

20683653003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248016 (or 248013 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 20683653003 in words is "twenty billion, six hundred eighty-three million, six hundred fifty-three thousand, three".