1342644603266 has 4 divisors (see below), whose sum is σ = 2013966904902. Its totient is φ = 671322301632.

The previous prime is 1342644603263. The next prime is 1342644603281. The reversal of 1342644603266 is 6623064462431.

It is a happy number.

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., 1341299841025 + 1344762241 = 1158145^2 + 36671^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1342644603266.

It is not an unprimeable number, because it can be changed into a prime (1342644603263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335661150815 + ... + 335661150818.

Almost surely, 2^{1342644603266} is an apocalyptic number.

1342644603266 is a deficient number, since it is larger than the sum of its proper divisors (671322301636).

1342644603266 is an equidigital number, since it uses as much as digits as its factorization.

1342644603266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671322301635.

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 1342644603266 in words is "one trillion, three hundred forty-two billion, six hundred forty-four million, six hundred three thousand, two hundred sixty-six".