20416332623642 has 8 divisors (see below), whose sum is σ = 30664954022196. Its totient is φ = 10194681282912.

The previous prime is 20416332623597. The next prime is 20416332623677. The reversal of 20416332623642 is 24632623361402.

It can be written as a sum of positive squares in 2 ways, for example, as 20318106168721 + 98226454921 = 4507561^2 + 313411^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20416332623593 and 20416332623602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6742512563 + ... + 6742515590.

Almost surely, 2^{20416332623642} is an apocalyptic number.

20416332623642 is a deficient number, since it is larger than the sum of its proper divisors (10248621398554).

20416332623642 is a wasteful number, since it uses less digits than its factorization.

20416332623642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13485028912.

The product of its (nonzero) digits is 1492992, while the sum is 44.

The spelling of 20416332623642 in words is "twenty trillion, four hundred sixteen billion, three hundred thirty-two million, six hundred twenty-three thousand, six hundred forty-two".