20135215571336 has 16 divisors (see below), whose sum is σ = 37753659921600. Its totient is φ = 10067572925584.

The previous prime is 20135215571327. The next prime is 20135215571407. The reversal of 20135215571336 is 63317551253102.

It is a super-2 number, since 2×20135215571336² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815476 + ... + 6600483.

It is an arithmetic number, because the mean of its divisors is an integer number (2359603745100).

Almost surely, 2^{20135215571336} is an apocalyptic number.

It is an amenable number.

20135215571336 is a deficient number, since it is larger than the sum of its proper divisors (17618444350264).

20135215571336 is a wasteful number, since it uses less digits than its factorization.

20135215571336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715028 (or 8715024 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 44.

It can be divided in two parts, 2013521 and 5571336, that added together give a palindrome (7584857).

The spelling of 20135215571336 in words is "twenty trillion, one hundred thirty-five billion, two hundred fifteen million, five hundred seventy-one thousand, three hundred thirty-six".