26661063 has 32 divisors (see below), whose sum is σ = 43223040. Its totient is φ = 14394240.

The previous prime is 26661059. The next prime is 26661101. The reversal of 26661063 is 36016662.

It is not a de Polignac number, because 26661063 - 2² = 26661059 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 26661063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26661043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11370 + ... + 13512.

It is an arithmetic number, because the mean of its divisors is an integer number (1350720).

Almost surely, 2^26661063 is an apocalyptic number.

26661063 is a deficient number, since it is larger than the sum of its proper divisors (16561977).

26661063 is a wasteful number, since it uses less digits than its factorization.

26661063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 26661063 is about 5163.4351937446. The cubic root of 26661063 is about 298.7393880558.

The spelling of 26661063 in words is "twenty-six million, six hundred sixty-one thousand, sixty-three".