20445356630303 has 4 divisors (see below), whose sum is σ = 22304025414888. Its totient is φ = 18586687845720.

The previous prime is 20445356630299. The next prime is 20445356630323. The reversal of 20445356630303 is 30303665354402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20445356630303 - 2² = 20445356630299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20445356630323) 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 3 ways as a sum of consecutive naturals, for example, 929334392276 + ... + 929334392297.

It is an arithmetic number, because the mean of its divisors is an integer number (5576006353722).

Almost surely, 2^{20445356630303} is an apocalyptic number.

20445356630303 is a deficient number, since it is larger than the sum of its proper divisors (1858668784585).

20445356630303 is a wasteful number, since it uses less digits than its factorization.

20445356630303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858668784584.

The product of its (nonzero) digits is 2332800, while the sum is 44.

The spelling of 20445356630303 in words is "twenty trillion, four hundred forty-five billion, three hundred fifty-six million, six hundred thirty thousand, three hundred three".