20201434616 has 64 divisors (see below), whose sum is σ = 41637304800. Its totient is φ = 9112435200.

The previous prime is 20201434573. The next prime is 20201434697. The reversal of 20201434616 is 61643410202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9762830 + ... + 9764898.

Almost surely, 2^20201434616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201434616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20818652400).

20201434616 is an abundant number, since it is smaller than the sum of its proper divisors (21435870184).

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

20201434616 is a wasteful number, since it uses less digits than its factorization.

20201434616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 20201434616 its reverse (61643410202), we get a palindrome (81844844818).

The spelling of 20201434616 in words is "twenty billion, two hundred one million, four hundred thirty-four thousand, six hundred sixteen".