20763567415504 has 20 divisors (see below), whose sum is σ = 40585424365476. Its totient is φ = 10289909514752.

The previous prime is 20763567415457. The next prime is 20763567415519. The reversal of 20763567415504 is 40551476536702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1810779305104 + 18952788110400 = 1345652^2 + 4353480^2 .

It is a super-2 number, since 2×20763567415504² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 5742135199 + ... + 5742138814.

Almost surely, 2^{20763567415504} is an apocalyptic number.

It is an amenable number.

20763567415504 is a deficient number, since it is larger than the sum of its proper divisors (19821856949972).

20763567415504 is a wasteful number, since it uses less digits than its factorization.

20763567415504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11484274134 (or 11484274128 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 20763567415504 in words is "twenty trillion, seven hundred sixty-three billion, five hundred sixty-seven million, four hundred fifteen thousand, five hundred four".