20529169692 has 24 divisors (see below), whose sum is σ = 48439616400. Its totient is φ = 6766167936.

The previous prime is 20529169691. The next prime is 20529169699. The reversal of 20529169692 is 29696192502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20529169691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9609967 + ... + 9612102.

It is an arithmetic number, because the mean of its divisors is an integer number (2018317350).

Almost surely, 2^20529169692 is an apocalyptic number.

It is an amenable number.

20529169692 is an abundant number, since it is smaller than the sum of its proper divisors (27910446708).

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

20529169692 is a wasteful number, since it uses less digits than its factorization.

20529169692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19222165 (or 19222163 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 20529169692 in words is "twenty billion, five hundred twenty-nine million, one hundred sixty-nine thousand, six hundred ninety-two".