20133244215 has 48 divisors (see below), whose sum is σ = 40696968000. Its totient is φ = 9203761728.

The previous prime is 20133244207. The next prime is 20133244237. The reversal of 20133244215 is 51244233102.

20133244215 is a `hidden beast` number, since 201 + 3 + 3 + 2 + 442 + 15 = 666.

It is not a de Polignac number, because 20133244215 - 2³ = 20133244207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636760 + ... + 667629.

It is an arithmetic number, because the mean of its divisors is an integer number (847853500).

Almost surely, 2^20133244215 is an apocalyptic number.

20133244215 is an abundant number, since it is smaller than the sum of its proper divisors (20563723785).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20133244215 is a wasteful number, since it uses less digits than its factorization.

20133244215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304421 (or 1304404 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20133244215 its reverse (51244233102), we get a palindrome (71377477317).

The spelling of 20133244215 in words is "twenty billion, one hundred thirty-three million, two hundred forty-four thousand, two hundred fifteen".