20346396336 has 120 divisors (see below), whose sum is σ = 65113451520. Its totient is φ = 5809926528.

The previous prime is 20346396307. The next prime is 20346396347. The reversal of 20346396336 is 63369364302.

20346396336 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 6 + 3 + 9 + 633 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20346396291 and 20346396300.

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, 2155435 + ... + 2164853.

It is an arithmetic number, because the mean of its divisors is an integer number (542612096).

Almost surely, 2^20346396336 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 20346396336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32556725760).

20346396336 is an abundant number, since it is smaller than the sum of its proper divisors (44767055184).

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

20346396336 is a wasteful number, since it uses less digits than its factorization.

20346396336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583 (or 11574 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 45.

The spelling of 20346396336 in words is "twenty billion, three hundred forty-six million, three hundred ninety-six thousand, three hundred thirty-six".