20345032403336 has 32 divisors (see below), whose sum is σ = 40556545335360. Its totient is φ = 9546643584192.

The previous prime is 20345032403329. The next prime is 20345032403341. The reversal of 20345032403336 is 63330423054302.

It is a self number, because there is not a number n which added to its sum of digits gives 20345032403336.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043111270 + ... + 1043130773.

It is an arithmetic number, because the mean of its divisors is an integer number (1267392041730).

Almost surely, 2^{20345032403336} is an apocalyptic number.

It is an amenable number.

20345032403336 is a deficient number, since it is larger than the sum of its proper divisors (20211512932024).

20345032403336 is a wasteful number, since it uses less digits than its factorization.

20345032403336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086242125 (or 2086242121 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 38.

Adding to 20345032403336 its reverse (63330423054302), we get a palindrome (83675455457638).

The spelling of 20345032403336 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred three thousand, three hundred thirty-six".