20366074443 has 64 divisors (see below), whose sum is σ = 34603075584. Its totient is φ = 10461696000.

The previous prime is 20366074439. The next prime is 20366074459. The reversal of 20366074443 is 34447066302.

It is not a de Polignac number, because 20366074443 - 2² = 20366074439 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (20366074403) 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 63 ways as a sum of consecutive naturals, for example, 264958 + ... + 333068.

It is an arithmetic number, because the mean of its divisors is an integer number (540673056).

Almost surely, 2^20366074443 is an apocalyptic number.

20366074443 is a deficient number, since it is larger than the sum of its proper divisors (14237001141).

20366074443 is a wasteful number, since it uses less digits than its factorization.

20366074443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68196.

The product of its (nonzero) digits is 290304, while the sum is 39.

The spelling of 20366074443 in words is "twenty billion, three hundred sixty-six million, seventy-four thousand, four hundred forty-three".