17121631426066 has 8 divisors (see below), whose sum is σ = 25756035813900. Its totient is φ = 8536286154768.

The previous prime is 17121631426057. The next prime is 17121631426079. The reversal of 17121631426066 is 66062413612171.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16705032178041 + 416599248025 = 4087179^2 + 645445^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 12264778261 + ... + 12264779656.

Almost surely, 2^{17121631426066} is an apocalyptic number.

17121631426066 is a deficient number, since it is larger than the sum of its proper divisors (8634404387834).

17121631426066 is a wasteful number, since it uses less digits than its factorization.

17121631426066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24529558268.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 17121631426066 in words is "seventeen trillion, one hundred twenty-one billion, six hundred thirty-one million, four hundred twenty-six thousand, sixty-six".