1266664504246 has 4 divisors (see below), whose sum is σ = 1899996756372. Its totient is φ = 633332252122.

The previous prime is 1266664504243. The next prime is 1266664504309. The reversal of 1266664504246 is 6424054666621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1266664504193 and 1266664504202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266664504243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316666126060 + ... + 316666126063.

It is an arithmetic number, because the mean of its divisors is an integer number (474999189093).

Almost surely, 2^{1266664504246} is an apocalyptic number.

1266664504246 is a deficient number, since it is larger than the sum of its proper divisors (633332252126).

1266664504246 is an equidigital number, since it uses as much as digits as its factorization.

1266664504246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633332252125.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 1266664504246 in words is "one trillion, two hundred sixty-six billion, six hundred sixty-four million, five hundred four thousand, two hundred forty-six".