20603645041 has 8 divisors (see below), whose sum is σ = 24306604544. Its totient is φ = 17090580960.

The previous prime is 20603644987. The next prime is 20603645059. The reversal of 20603645041 is 14054630602.

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 20603645041 - 2¹³ = 20603636849 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20603644994 and 20603645012.

It is not an unprimeable number, because it can be changed into a prime (20603645441) 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, 47473620 + ... + 47474053.

It is an arithmetic number, because the mean of its divisors is an integer number (3038325568).

Almost surely, 2^20603645041 is an apocalyptic number.

It is an amenable number.

20603645041 is a deficient number, since it is larger than the sum of its proper divisors (3702959503).

20603645041 is an equidigital number, since it uses as much as digits as its factorization.

20603645041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94947711.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20603645041 in words is "twenty billion, six hundred three million, six hundred forty-five thousand, forty-one".