26665673027225 has 12 divisors (see below), whose sum is σ = 33065504338944. Its totient is φ = 21332493399120.

The previous prime is 26665673027159. The next prime is 26665673027263. The reversal of 26665673027225 is 52272037656662.

It is not a de Polignac number, because 26665673027225 - 2⁸ = 26665673026969 is a prime.

It is a super-2 number, since 2×26665673027225² (a number of 28 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 11 ways as a sum of consecutive naturals, for example, 16164632 + ... + 17737718.

It is an arithmetic number, because the mean of its divisors is an integer number (2755458694912).

Almost surely, 2^{26665673027225} is an apocalyptic number.

26665673027225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26665673027225 is a deficient number, since it is larger than the sum of its proper divisors (6399831311719).

26665673027225 is a wasteful number, since it uses less digits than its factorization.

26665673027225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251144 (or 2251139 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 59.

The spelling of 26665673027225 in words is "twenty-six trillion, six hundred sixty-five billion, six hundred seventy-three million, twenty-seven thousand, two hundred twenty-five".