20364335432 has 128 divisors (see below), whose sum is σ = 46985702400. Its totient is φ = 8080300800.

The previous prime is 20364335419. The next prime is 20364335461. The reversal of 20364335432 is 23453346302.

It is a junction number, because it is equal to n+sod(n) for n = 20364335392 and 20364335401.

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, 18665207 + ... + 18666297.

It is an arithmetic number, because the mean of its divisors is an integer number (367075800).

Almost surely, 2^20364335432 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 20364335432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23492851200).

20364335432 is an abundant number, since it is smaller than the sum of its proper divisors (26621366968).

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

20364335432 is a wasteful number, since it uses less digits than its factorization.

20364335432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 35.

The spelling of 20364335432 in words is "twenty billion, three hundred sixty-four million, three hundred thirty-five thousand, four hundred thirty-two".