12466206635501 has 4 divisors (see below), whose sum is σ = 12466215913404. Its totient is φ = 12466197357600.

The previous prime is 12466206635459. The next prime is 12466206635507. The reversal of 12466206635501 is 10553660266421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7412931928900 + 5053274706601 = 2722670^2 + 2247949^2 .

It is a cyclic number.

It is not a de Polignac number, because 12466206635501 - 2¹⁴ = 12466206619117 is a prime.

It is a super-3 number, since 3×12466206635501³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12466206635507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193920 + ... + 5453961.

It is an arithmetic number, because the mean of its divisors is an integer number (3116553978351).

Almost surely, 2^{12466206635501} is an apocalyptic number.

It is an amenable number.

12466206635501 is a deficient number, since it is larger than the sum of its proper divisors (9277903).

12466206635501 is an equidigital number, since it uses as much as digits as its factorization.

12466206635501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9277902.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 12466206635501 in words is "twelve trillion, four hundred sixty-six billion, two hundred six million, six hundred thirty-five thousand, five hundred one".