20303277493605 has 16 divisors (see below), whose sum is σ = 34194993673920. Its totient is φ = 10258498101888.

The previous prime is 20303277493559. The next prime is 20303277493613. The reversal of 20303277493605 is 50639477230302.

It is a happy number.

It is not a de Polignac number, because 20303277493605 - 2¹⁴ = 20303277477221 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 35619784792 + ... + 35619785361.

It is an arithmetic number, because the mean of its divisors is an integer number (2137187104620).

Almost surely, 2^{20303277493605} is an apocalyptic number.

It is an amenable number.

20303277493605 is a deficient number, since it is larger than the sum of its proper divisors (13891716180315).

20303277493605 is a wasteful number, since it uses less digits than its factorization.

20303277493605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71239570180.

The product of its (nonzero) digits is 5715360, while the sum is 51.

The spelling of 20303277493605 in words is "twenty trillion, three hundred three billion, two hundred seventy-seven million, four hundred ninety-three thousand, six hundred five".