20345032400336 has 30 divisors (see below), whose sum is σ = 45854173791810. Its totient is φ = 8719299599808.

The previous prime is 20345032400317. The next prime is 20345032400351. The reversal of 20345032400336 is 63300423054302.

It can be written as a sum of positive squares in only one way, i.e., 18007631731600 + 2337400668736 = 4243540^2 + 1528856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20345032400296 and 20345032400305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12975147431 + ... + 12975148998.

It is an arithmetic number, because the mean of its divisors is an integer number (1528472459727).

Almost surely, 2^{20345032400336} is an apocalyptic number.

It is an amenable number.

20345032400336 is an abundant number, since it is smaller than the sum of its proper divisors (25509141391474).

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

20345032400336 is a wasteful number, since it uses less digits than its factorization.

20345032400336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25950296451 (or 25950296438 counting only the distinct ones).

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

Adding to 20345032400336 its reverse (63300423054302), we get a palindrome (83645455454638).

The spelling of 20345032400336 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred thousand, three hundred thirty-six".