20133535215244 has 96 divisors (see below), whose sum is σ = 39566055513600. Its totient is φ = 8883880934400.

The previous prime is 20133535215223. The next prime is 20133535215247. The reversal of 20133535215244 is 44251253533102.

It is a super-2 number, since 2×20133535215244² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20133535215197 and 20133535215206.

It is not an unprimeable number, because it can be changed into a prime (20133535215247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459050657 + ... + 1459064455.

It is an arithmetic number, because the mean of its divisors is an integer number (412146411600).

Almost surely, 2^{20133535215244} is an apocalyptic number.

It is an amenable number.

20133535215244 is a deficient number, since it is larger than the sum of its proper divisors (19432520298356).

20133535215244 is a wasteful number, since it uses less digits than its factorization.

20133535215244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839 (or 15837 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 20133535215244 its reverse (44251253533102), we get a palindrome (64384788748346).

The spelling of 20133535215244 in words is "twenty trillion, one hundred thirty-three billion, five hundred thirty-five million, two hundred fifteen thousand, two hundred forty-four".