20610640012403 has 16 divisors (see below), whose sum is σ = 23637434955456. Its totient is φ = 17604459855360.

The previous prime is 20610640012399. The next prime is 20610640012489. The reversal of 20610640012403 is 30421004601602.

It is not a de Polignac number, because 20610640012403 - 2² = 20610640012399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20610640092403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23844863 + ... + 24694103.

It is an arithmetic number, because the mean of its divisors is an integer number (1477339684716).

Almost surely, 2^{20610640012403} is an apocalyptic number.

20610640012403 is a deficient number, since it is larger than the sum of its proper divisors (3026794943053).

20610640012403 is a wasteful number, since it uses less digits than its factorization.

20610640012403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861374.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 20610640012403 in words is "twenty trillion, six hundred ten billion, six hundred forty million, twelve thousand, four hundred three".