20045544043 has 8 divisors (see below), whose sum is σ = 23648199680. Its totient is φ = 16627640040.

The previous prime is 20045544011. The next prime is 20045544119. The reversal of 20045544043 is 34044554002.

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 20045544043 - 2⁵ = 20045544011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 20045543996 and 20045544014.

It is not an unprimeable number, because it can be changed into a prime (20045544143) 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, 46187673 + ... + 46188106.

It is an arithmetic number, because the mean of its divisors is an integer number (2956024960).

Almost surely, 2^20045544043 is an apocalyptic number.

20045544043 is a deficient number, since it is larger than the sum of its proper divisors (3602655637).

20045544043 is an equidigital number, since it uses as much as digits as its factorization.

20045544043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92375817.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 20045544043 in words is "twenty billion, forty-five million, five hundred forty-four thousand, forty-three".