20463023502515 has 12 divisors (see below), whose sum is σ = 26990897116512. Its totient is φ = 14882198910480.

The previous prime is 20463023502491. The next prime is 20463023502533. The reversal of 20463023502515 is 51520532036402.

It is not a de Polignac number, because 20463023502515 - 2²² = 20463019308211 is a prime.

It is a super-2 number, since 2×20463023502515² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16911589067 + ... + 16911590276.

It is an arithmetic number, because the mean of its divisors is an integer number (2249241426376).

Almost surely, 2^{20463023502515} is an apocalyptic number.

20463023502515 is a deficient number, since it is larger than the sum of its proper divisors (6527873613997).

20463023502515 is a wasteful number, since it uses less digits than its factorization.

20463023502515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33823179370 (or 33823179359 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 20463023502515 its reverse (51520532036402), we get a palindrome (71983555538917).

The spelling of 20463023502515 in words is "twenty trillion, four hundred sixty-three billion, twenty-three million, five hundred two thousand, five hundred fifteen".