26641616401 has 8 divisors (see below), whose sum is σ = 26723964960. Its totient is φ = 26559396192.

The previous prime is 26641616387. The next prime is 26641616447. The reversal of 26641616401 is 10461614662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26641616401 - 2⁷ = 26641616273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26641616461) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 392301 + ... + 455173.

It is an arithmetic number, because the mean of its divisors is an integer number (3340495620).

Almost surely, 2^26641616401 is an apocalyptic number.

It is an amenable number.

26641616401 is a deficient number, since it is larger than the sum of its proper divisors (82348559).

26641616401 is an equidigital number, since it uses as much as digits as its factorization.

26641616401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64175.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 26641616401 in words is "twenty-six billion, six hundred forty-one million, six hundred sixteen thousand, four hundred one".