20315654733 has 12 divisors (see below), whose sum is σ = 29773907744. Its totient is φ = 12312517800.

The previous prime is 20315654717. The next prime is 20315654743. The reversal of 20315654733 is 33745651302.

It is not a de Polignac number, because 20315654733 - 2⁴ = 20315654717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20315654691 and 20315654700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315654743) 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 11 ways as a sum of consecutive naturals, for example, 27982633 + ... + 27983358.

Almost surely, 2^20315654733 is an apocalyptic number.

It is an amenable number.

20315654733 is a deficient number, since it is larger than the sum of its proper divisors (9458253011).

20315654733 is a wasteful number, since it uses less digits than its factorization.

20315654733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55966016 (or 55966005 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 20315654733 in words is "twenty billion, three hundred fifteen million, six hundred fifty-four thousand, seven hundred thirty-three".