20310655005 has 12 divisors (see below), whose sum is σ = 35205135420. Its totient is φ = 10832349312.

The previous prime is 20310654971. The next prime is 20310655033. The reversal of 20310655005 is 50055601302.

20310655005 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 0 + 655 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5215583961 + 15095071044 = 72219^2 + 122862^2 .

It is not a de Polignac number, because 20310655005 - 2³⁰ = 19236913181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20310655005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225673900 + ... + 225673989.

It is an arithmetic number, because the mean of its divisors is an integer number (2933761285).

Almost surely, 2^20310655005 is an apocalyptic number.

It is an amenable number.

20310655005 is a deficient number, since it is larger than the sum of its proper divisors (14894480415).

20310655005 is a wasteful number, since it uses less digits than its factorization.

20310655005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451347900 (or 451347897 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 20310655005 in words is "twenty billion, three hundred ten million, six hundred fifty-five thousand, five".