20612113533 has 24 divisors (see below), whose sum is σ = 32509634976. Its totient is φ = 12480674400.

The previous prime is 20612113519. The next prime is 20612113537. The reversal of 20612113533 is 33531121602.

20612113533 is a `hidden beast` number, since 2 + 0 + 6 + 12 + 113 + 533 = 666.

It is not a de Polignac number, because 20612113533 - 2⁴ = 20612113517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20612113497 and 20612113506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20612113537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12591 + ... + 203427.

It is an arithmetic number, because the mean of its divisors is an integer number (1354568124).

Almost surely, 2^20612113533 is an apocalyptic number.

It is an amenable number.

20612113533 is a deficient number, since it is larger than the sum of its proper divisors (11897521443).

20612113533 is a wasteful number, since it uses less digits than its factorization.

20612113533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191945 (or 191942 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 20612113533 in words is "twenty billion, six hundred twelve million, one hundred thirteen thousand, five hundred thirty-three".