20405234552335 has 4 divisors (see below), whose sum is σ = 24486281462808. Its totient is φ = 16324187641864.

The previous prime is 20405234552323. The next prime is 20405234552341. The reversal of 20405234552335 is 53325543250402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20405234552335 - 2²⁵ = 20405200997903 is a prime.

It is a super-2 number, since 2×20405234552335² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20405234552291 and 20405234552300.

It is a congruent number.

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, 2040523455229 + ... + 2040523455238.

It is an arithmetic number, because the mean of its divisors is an integer number (6121570365702).

Almost surely, 2^{20405234552335} is an apocalyptic number.

20405234552335 is a deficient number, since it is larger than the sum of its proper divisors (4081046910473).

20405234552335 is an equidigital number, since it uses as much as digits as its factorization.

20405234552335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081046910472.

The product of its (nonzero) digits is 2160000, while the sum is 43.

The spelling of 20405234552335 in words is "twenty trillion, four hundred five billion, two hundred thirty-four million, five hundred fifty-two thousand, three hundred thirty-five".