20426614106555 has 4 divisors (see below), whose sum is σ = 24511936927872. Its totient is φ = 16341291285240.

The previous prime is 20426614106527. The next prime is 20426614106579. The reversal of 20426614106555 is 55560141662402.

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

It is not a de Polignac number, because 20426614106555 - 2¹⁴ = 20426614090171 is a prime.

It is a super-2 number, since 2×20426614106555² (a number of 27 digits) contains 22 as substring.

It is a Duffinian 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, 2042661410651 + ... + 2042661410660.

It is an arithmetic number, because the mean of its divisors is an integer number (6127984231968).

Almost surely, 2^{20426614106555} is an apocalyptic number.

20426614106555 is a deficient number, since it is larger than the sum of its proper divisors (4085322821317).

20426614106555 is an equidigital number, since it uses as much as digits as its factorization.

20426614106555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085322821316.

The product of its (nonzero) digits is 1728000, while the sum is 47.

Adding to 20426614106555 its reverse (55560141662402), we get a palindrome (75986755768957).

The spelling of 20426614106555 in words is "twenty trillion, four hundred twenty-six billion, six hundred fourteen million, one hundred six thousand, five hundred fifty-five".