20385446101 has 8 divisors (see below), whose sum is σ = 20721906104. Its totient is φ = 20049059520.

The previous prime is 20385446099. The next prime is 20385446129. The reversal of 20385446101 is 10164458302.

It can be written as a sum of positive squares in 4 ways, for example, as 25010001 + 20360436100 = 5001^2 + 142690^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20385446101 - 2¹ = 20385446099 is a prime.

It is a super-2 number, since 2×20385446101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20385446131) 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, 1030435 + ... + 1050031.

It is an arithmetic number, because the mean of its divisors is an integer number (2590238263).

Almost surely, 2^20385446101 is an apocalyptic number.

It is an amenable number.

20385446101 is a deficient number, since it is larger than the sum of its proper divisors (336460003).

20385446101 is a wasteful number, since it uses less digits than its factorization.

20385446101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36711.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20385446101 in words is "twenty billion, three hundred eighty-five million, four hundred forty-six thousand, one hundred one".