20426652004455 has 24 divisors (see below), whose sum is σ = 35406338952192. Its totient is φ = 10894170665664.

The previous prime is 20426652004333. The next prime is 20426652004463. The reversal of 20426652004455 is 55440025662402.

20426652004455 is a `hidden beast` number, since 20 + 4 + 2 + 66 + 520 + 0 + 4 + 45 + 5 = 666.

It is not a de Polignac number, because 20426652004455 - 2⁹ = 20426652003943 is a prime.

It is a super-2 number, since 2×20426652004455² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20426652004455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12635397 + ... + 14160033.

It is an arithmetic number, because the mean of its divisors is an integer number (1475264123008).

Almost surely, 2^{20426652004455} is an apocalyptic number.

20426652004455 is a deficient number, since it is larger than the sum of its proper divisors (14979686947737).

20426652004455 is a wasteful number, since it uses less digits than its factorization.

20426652004455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822375 (or 1822372 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

Adding to 20426652004455 its reverse (55440025662402), we get a palindrome (75866677666857).

The spelling of 20426652004455 in words is "twenty trillion, four hundred twenty-six billion, six hundred fifty-two million, four thousand, four hundred fifty-five".