20310506656206 has 32 divisors (see below), whose sum is σ = 43747779626880. Its totient is φ = 6249090523104.

The previous prime is 20310506656163. The next prime is 20310506656291. The reversal of 20310506656206 is 60265660501302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4510180 + ... + 7807863.

It is an arithmetic number, because the mean of its divisors is an integer number (1367118113340).

Almost surely, 2^{20310506656206} is an apocalyptic number.

20310506656206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20310506656206 is an abundant number, since it is smaller than the sum of its proper divisors (23437272970674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310506656206 is a wasteful number, since it uses less digits than its factorization.

20310506656206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12339200.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 20310506656206 in words is "twenty trillion, three hundred ten billion, five hundred six million, six hundred fifty-six thousand, two hundred six".