26105127320066 has 4 divisors (see below), whose sum is σ = 39157690980102. Its totient is φ = 13052563660032.

The previous prime is 26105127319981. The next prime is 26105127320093. The reversal of 26105127320066 is 66002372150162.

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

It can be written as a sum of positive squares in only one way, i.e., 21221491409041 + 4883635911025 = 4606679^2 + 2209895^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 6526281830015 + ... + 6526281830018.

Almost surely, 2^{26105127320066} is an apocalyptic number.

26105127320066 is a deficient number, since it is larger than the sum of its proper divisors (13052563660036).

26105127320066 is a wasteful number, since it uses less digits than its factorization.

26105127320066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13052563660035.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 26105127320066 in words is "twenty-six trillion, one hundred five billion, one hundred twenty-seven million, three hundred twenty thousand, sixty-six".