20051554043 has 8 divisors (see below), whose sum is σ = 21232752912. Its totient is φ = 18870543616.

The previous prime is 20051554037. The next prime is 20051554051. The reversal of 20051554043 is 34045515002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20051554043 - 2¹⁴ = 20051537659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20051553997 and 20051554015.

It is not an unprimeable number, because it can be changed into a prime (20051554643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213071 + ... + 292407.

It is an arithmetic number, because the mean of its divisors is an integer number (2654094114).

Almost surely, 2^20051554043 is an apocalyptic number.

20051554043 is a deficient number, since it is larger than the sum of its proper divisors (1181198869).

20051554043 is a wasteful number, since it uses less digits than its factorization.

20051554043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94221.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20051554043 in words is "twenty billion, fifty-one million, five hundred fifty-four thousand, forty-three".