20474202336 has 192 divisors, whose sum is σ = 62836300800. Its totient is φ = 5834841600.

The previous prime is 20474202319. The next prime is 20474202383. The reversal of 20474202336 is 63320247402.

It is a super-2 number, since 2×20474202336² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20474202297 and 20474202306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23082085 + ... + 23082971.

It is an arithmetic number, because the mean of its divisors is an integer number (327272400).

Almost surely, 2^20474202336 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 20474202336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31418150400).

20474202336 is an abundant number, since it is smaller than the sum of its proper divisors (42362098464).

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

20474202336 is an equidigital number, since it uses as much as digits as its factorization.

20474202336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 33.

Adding to 20474202336 its reverse (63320247402), we get a palindrome (83794449738).

The spelling of 20474202336 in words is "twenty billion, four hundred seventy-four million, two hundred two thousand, three hundred thirty-six".