20169529601 has 12 divisors (see below), whose sum is σ = 21884238000. Its totient is φ = 18580638960.

The previous prime is 20169529571. The next prime is 20169529619. The reversal of 20169529601 is 10692596102.

It is a de Polignac number, because none of the positive numbers 2^k-20169529601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20169529631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35255 + ... + 203916.

It is an arithmetic number, because the mean of its divisors is an integer number (1823686500).

Almost surely, 2^20169529601 is an apocalyptic number.

It is an amenable number.

20169529601 is a deficient number, since it is larger than the sum of its proper divisors (1714708399).

20169529601 is a wasteful number, since it uses less digits than its factorization.

20169529601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239696 (or 239683 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 20169529601 in words is "twenty billion, one hundred sixty-nine million, five hundred twenty-nine thousand, six hundred one".