20346412227645 has 48 divisors (see below), whose sum is σ = 39862358677440. Its totient is φ = 8811679274496.

The previous prime is 20346412227619. The next prime is 20346412227737. The reversal of 20346412227645 is 54672221464302.

It is not a de Polignac number, because 20346412227645 - 2¹⁸ = 20346411965501 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20346412227594 and 20346412227603.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 728464812 + ... + 728492741.

It is an arithmetic number, because the mean of its divisors is an integer number (830465805780).

Almost surely, 2^{20346412227645} is an apocalyptic number.

It is an amenable number.

20346412227645 is a deficient number, since it is larger than the sum of its proper divisors (19515946449795).

20346412227645 is a wasteful number, since it uses less digits than its factorization.

20346412227645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456957594 (or 1456957587 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 48.

The spelling of 20346412227645 in words is "twenty trillion, three hundred forty-six billion, four hundred twelve million, two hundred twenty-seven thousand, six hundred forty-five".