1343650663 has 4 divisors (see below), whose sum is σ = 1345520160. Its totient is φ = 1341781168.

The previous prime is 1343650657. The next prime is 1343650673. The reversal of 1343650663 is 3660563431.

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

It is a cyclic number.

It is not a de Polignac number, because 1343650663 - 2¹⁷ = 1343519591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343650603) 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, 933670 + ... + 935107.

It is an arithmetic number, because the mean of its divisors is an integer number (336380040).

Almost surely, 2^1343650663 is an apocalyptic number.

1343650663 is a deficient number, since it is larger than the sum of its proper divisors (1869497).

1343650663 is an equidigital number, since it uses as much as digits as its factorization.

1343650663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869496.

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 1343650663 is about 36655.8407760619. The cubic root of 1343650663 is about 1103.4740477537.

The spelling of 1343650663 in words is "one billion, three hundred forty-three million, six hundred fifty thousand, six hundred sixty-three".