20435245104 has 80 divisors (see below), whose sum is σ = 55942848000. Its totient is φ = 6409882368.

The previous prime is 20435245087. The next prime is 20435245109. The reversal of 20435245104 is 40154253402.

It is not an unprimeable number, because it can be changed into a prime (20435245109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60697 + ... + 211079.

It is an arithmetic number, because the mean of its divisors is an integer number (699285600).

Almost surely, 2^20435245104 is an apocalyptic number.

20435245104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20435245104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27971424000).

20435245104 is an abundant number, since it is smaller than the sum of its proper divisors (35507602896).

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

20435245104 is a wasteful number, since it uses less digits than its factorization.

20435245104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150562 (or 150556 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20435245104 its reverse (40154253402), we get a palindrome (60589498506).

The spelling of 20435245104 in words is "twenty billion, four hundred thirty-five million, two hundred forty-five thousand, one hundred four".