1346664416642 has 4 divisors (see below), whose sum is σ = 2019996624966. Its totient is φ = 673332208320.

The previous prime is 1346664416641. The next prime is 1346664416663. The reversal of 1346664416642 is 2466144666431.

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

It can be written as a sum of positive squares in only one way, i.e., 1282377321241 + 64287095401 = 1132421^2 + 253549^2 .

It is a super-3 number, since 3×1346664416642³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1346664416641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336666104159 + ... + 336666104162.

Almost surely, 2^{1346664416642} is an apocalyptic number.

1346664416642 is a deficient number, since it is larger than the sum of its proper divisors (673332208324).

1346664416642 is an equidigital number, since it uses as much as digits as its factorization.

1346664416642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673332208323.

The product of its digits is 11943936, while the sum is 53.

The spelling of 1346664416642 in words is "one trillion, three hundred forty-six billion, six hundred sixty-four million, four hundred sixteen thousand, six hundred forty-two".