20183856946 has 16 divisors (see below), whose sum is σ = 33796227168. Its totient is φ = 8961120000.

The previous prime is 20183856937. The next prime is 20183857003. The reversal of 20183856946 is 64965838102.

It is a junction number, because it is equal to n+sod(n) for n = 20183856893 and 20183856902.

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, 10667055 + ... + 10668946.

It is an arithmetic number, because the mean of its divisors is an integer number (2112264198).

Almost surely, 2^20183856946 is an apocalyptic number.

20183856946 is a deficient number, since it is larger than the sum of its proper divisors (13612370222).

20183856946 is a wasteful number, since it uses less digits than its factorization.

20183856946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21336057.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 20183856946 in words is "twenty billion, one hundred eighty-three million, eight hundred fifty-six thousand, nine hundred forty-six".