26620226420266 has 4 divisors (see below), whose sum is σ = 39930339630402. Its totient is φ = 13310113210132.

The previous prime is 26620226420191. The next prime is 26620226420297. The reversal of 26620226420266 is 66202462202662.

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., 15133041394641 + 11487185025625 = 3890121^2 + 3389275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655056605065 + ... + 6655056605068.

Almost surely, 2^{26620226420266} is an apocalyptic number.

26620226420266 is a deficient number, since it is larger than the sum of its proper divisors (13310113210136).

26620226420266 is a wasteful number, since it uses less digits than its factorization.

26620226420266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310113210135.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 26620226420266 in words is "twenty-six trillion, six hundred twenty billion, two hundred twenty-six million, four hundred twenty thousand, two hundred sixty-six".