20416126335425 has 6 divisors (see below), whose sum is σ = 25315996655958. Its totient is φ = 16332901068320.

The previous prime is 20416126335349. The next prime is 20416126335431. The reversal of 20416126335425 is 52453362161402.

It can be written as a sum of positive squares in 3 ways, for example, as 1940674672561 + 18475451662864 = 1393081^2 + 4298308^2 .

It is not a de Polignac number, because 20416126335425 - 2¹² = 20416126331329 is a prime.

It is a Duffinian 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, 408322526684 + ... + 408322526733.

It is an arithmetic number, because the mean of its divisors is an integer number (4219332775993).

Almost surely, 2^{20416126335425} is an apocalyptic number.

20416126335425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20416126335425 is a deficient number, since it is larger than the sum of its proper divisors (4899870320533).

20416126335425 is an equidigital number, since it uses as much as digits as its factorization.

20416126335425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816645053427 (or 816645053422 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

Adding to 20416126335425 its reverse (52453362161402), we get a palindrome (72869488496827).

The spelling of 20416126335425 in words is "twenty trillion, four hundred sixteen billion, one hundred twenty-six million, three hundred thirty-five thousand, four hundred twenty-five".