20314653436 has 72 divisors (see below), whose sum is σ = 45367257600. Its totient is φ = 7870433760.

The previous prime is 20314653413. The next prime is 20314653451. The reversal of 20314653436 is 63435641302.

It is a junction number, because it is equal to n+sod(n) for n = 20314653395 and 20314653404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359605 + ... + 412243.

It is an arithmetic number, because the mean of its divisors is an integer number (630100800).

Almost surely, 2^20314653436 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 20314653436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22683628800).

20314653436 is an abundant number, since it is smaller than the sum of its proper divisors (25052604164).

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

20314653436 is a wasteful number, since it uses less digits than its factorization.

20314653436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52847 (or 52838 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 20314653436 in words is "twenty billion, three hundred fourteen million, six hundred fifty-three thousand, four hundred thirty-six".