20415465305603 has 16 divisors (see below), whose sum is σ = 22119708251520. Its totient is φ = 18767173600896.

The previous prime is 20415465305539. The next prime is 20415465305611. The reversal of 20415465305603 is 30650356451402.

It is not a de Polignac number, because 20415465305603 - 2⁶ = 20415465305539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20415465305633) 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 15 ways as a sum of consecutive naturals, for example, 26683676 + ... + 27438102.

It is an arithmetic number, because the mean of its divisors is an integer number (1382481765720).

Almost surely, 2^{20415465305603} is an apocalyptic number.

20415465305603 is a deficient number, since it is larger than the sum of its proper divisors (1704242945917).

20415465305603 is a wasteful number, since it uses less digits than its factorization.

20415465305603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791506.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 20415465305603 in words is "twenty trillion, four hundred fifteen billion, four hundred sixty-five million, three hundred five thousand, six hundred three".