20450363213651 has 6 divisors (see below), whose sum is σ = 23789198024100. Its totient is φ = 17528882754516.

The previous prime is 20450363213641. The next prime is 20450363213659. The reversal of 20450363213651 is 15631236305402.

It is not a de Polignac number, because 20450363213651 - 2²² = 20450359019347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20450363213599 and 20450363213608.

It is not an unprimeable number, because it can be changed into a prime (20450363213659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208677175601 + ... + 208677175698.

It is an arithmetic number, because the mean of its divisors is an integer number (3964866337350).

Almost surely, 2^{20450363213651} is an apocalyptic number.

20450363213651 is a deficient number, since it is larger than the sum of its proper divisors (3338834810449).

20450363213651 is an equidigital number, since it uses as much as digits as its factorization.

20450363213651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417354351313 (or 417354351306 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 20450363213651 in words is "twenty trillion, four hundred fifty billion, three hundred sixty-three million, two hundred thirteen thousand, six hundred fifty-one".