20243943262906 has 16 divisors (see below), whose sum is σ = 33126593392800. Its totient is φ = 9201753286480.

The previous prime is 20243943262843. The next prime is 20243943262909. The reversal of 20243943262906 is 60926234934202.

It is not an unprimeable number, because it can be changed into a prime (20243943262909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3702945 + ... + 7362043.

It is an arithmetic number, because the mean of its divisors is an integer number (2070412087050).

Almost surely, 2^{20243943262906} is an apocalyptic number.

20243943262906 is a deficient number, since it is larger than the sum of its proper divisors (12882650129894).

20243943262906 is a wasteful number, since it uses less digits than its factorization.

20243943262906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910589.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 20243943262906 in words is "twenty trillion, two hundred forty-three billion, nine hundred forty-three million, two hundred sixty-two thousand, nine hundred six".