26155224405 has 20 divisors (see below), whose sum is σ = 46885662252. Its totient is φ = 13949452800.

The previous prime is 26155224379. The next prime is 26155224413. The reversal of 26155224405 is 50442255162.

26155224405 is a `hidden beast` number, since 2 + 61 + 552 + 2 + 4 + 40 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9223489521 + 16931734884 = 96039^2 + 130122^2 .

It is not a de Polignac number, because 26155224405 - 2⁵ = 26155224373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26155224405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32289996 + ... + 32290805.

Almost surely, 2^26155224405 is an apocalyptic number.

It is an amenable number.

26155224405 is a deficient number, since it is larger than the sum of its proper divisors (20730437847).

26155224405 is an equidigital number, since it uses as much as digits as its factorization.

26155224405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64580818 (or 64580809 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 26155224405 its reverse (50442255162), we get a palindrome (76597479567).

The spelling of 26155224405 in words is "twenty-six billion, one hundred fifty-five million, two hundred twenty-four thousand, four hundred five".