20533145202 has 48 divisors (see below), whose sum is σ = 45396658008. Its totient is φ = 6705054720.

The previous prime is 20533145177. The next prime is 20533145219. The reversal of 20533145202 is 20254133502.

It is a happy number.

20533145202 is a `hidden beast` number, since 205 + 3 + 3 + 1 + 452 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13282793001 + 7250352201 = 115251^2 + 85149^2 .

It is a super-2 number, since 2×20533145202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626052 + ... + 658032.

Almost surely, 2^20533145202 is an apocalyptic number.

20533145202 is an abundant number, since it is smaller than the sum of its proper divisors (24863512806).

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

20533145202 is a wasteful number, since it uses less digits than its factorization.

20533145202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32715 (or 32712 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20533145202 its reverse (20254133502), we get a palindrome (40787278704).

The spelling of 20533145202 in words is "twenty billion, five hundred thirty-three million, one hundred forty-five thousand, two hundred two".