20013555334 has 16 divisors (see below), whose sum is σ = 30183040368. Its totient is φ = 9952631392.

The previous prime is 20013555319. The next prime is 20013555347. The reversal of 20013555334 is 43355531002.

It is a junction number, because it is equal to n+sod(n) for n = 20013555296 and 20013555305.

It is a congruent number.

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, 438144 + ... + 481660.

It is an arithmetic number, because the mean of its divisors is an integer number (1886440023).

Almost surely, 2^20013555334 is an apocalyptic number.

20013555334 is a deficient number, since it is larger than the sum of its proper divisors (10169485034).

20013555334 is a wasteful number, since it uses less digits than its factorization.

20013555334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44759.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 20013555334 in words is "twenty billion, thirteen million, five hundred fifty-five thousand, three hundred thirty-four".