20703583685 has 8 divisors (see below), whose sum is σ = 24993069696. Its totient is φ = 16463687440.

The previous prime is 20703583669. The next prime is 20703583717. The reversal of 20703583685 is 58638530702.

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

It is not a de Polignac number, because 20703583685 - 2⁴ = 20703583669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 12396521 + ... + 12398190.

It is an arithmetic number, because the mean of its divisors is an integer number (3124133712).

Almost surely, 2^20703583685 is an apocalyptic number.

It is an amenable number.

20703583685 is a deficient number, since it is larger than the sum of its proper divisors (4289486011).

20703583685 is a wasteful number, since it uses less digits than its factorization.

20703583685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24794883.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 20703583685 in words is "twenty billion, seven hundred three million, five hundred eighty-three thousand, six hundred eighty-five".