20934513633 has 32 divisors (see below), whose sum is σ = 32087600640. Its totient is φ = 12006783360.

The previous prime is 20934513599. The next prime is 20934513641. The reversal of 20934513633 is 33631543902.

It is not a de Polignac number, because 20934513633 - 2¹⁰ = 20934512609 is a prime.

It is a super-2 number, since 2×20934513633² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20934513591 and 20934513600.

It is not an unprimeable number, because it can be changed into a prime (20934517633) 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, 576141 + ... + 611397.

It is an arithmetic number, because the mean of its divisors is an integer number (1002737520).

Almost surely, 2^20934513633 is an apocalyptic number.

It is an amenable number.

20934513633 is a deficient number, since it is larger than the sum of its proper divisors (11153087007).

20934513633 is a wasteful number, since it uses less digits than its factorization.

20934513633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36237.

The product of its (nonzero) digits is 174960, while the sum is 39.

The spelling of 20934513633 in words is "twenty billion, nine hundred thirty-four million, five hundred thirteen thousand, six hundred thirty-three".