20351450433434 has 8 divisors (see below), whose sum is σ = 30527671333620. Its totient is φ = 10175559988896.

The previous prime is 20351450433389. The next prime is 20351450433463. The reversal of 20351450433434 is 43433405415302.

It can be written as a sum of positive squares in 2 ways, for example, as 16067390812225 + 4284059621209 = 4008415^2 + 2069797^2 .

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 = 20351450433391 and 20351450433400.

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, 82459889 + ... + 82706324.

Almost surely, 2^{20351450433434} is an apocalyptic number.

20351450433434 is a deficient number, since it is larger than the sum of its proper divisors (10176220900186).

20351450433434 is a wasteful number, since it uses less digits than its factorization.

20351450433434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165227824.

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 20351450433434 its reverse (43433405415302), we get a palindrome (63784855848736).

The spelling of 20351450433434 in words is "twenty trillion, three hundred fifty-one billion, four hundred fifty million, four hundred thirty-three thousand, four hundred thirty-four".