20416333516346 has 8 divisors (see below), whose sum is σ = 30649257352020. Its totient is φ = 10199914399008.

The previous prime is 20416333516307. The next prime is 20416333516361. The reversal of 20416333516346 is 64361533361402.

It can be written as a sum of positive squares in 2 ways, for example, as 17556477102025 + 2859856414321 = 4190045^2 + 1691111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20416333516346.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126176491 + ... + 4126181438.

Almost surely, 2^{20416333516346} is an apocalyptic number.

20416333516346 is a deficient number, since it is larger than the sum of its proper divisors (10232923835674).

20416333516346 is a wasteful number, since it uses less digits than its factorization.

20416333516346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8252359168.

The product of its (nonzero) digits is 2799360, while the sum is 47.

Adding to 20416333516346 its reverse (64361533361402), we get a palindrome (84777866877748).

The spelling of 20416333516346 in words is "twenty trillion, four hundred sixteen billion, three hundred thirty-three million, five hundred sixteen thousand, three hundred forty-six".