1662063313 has 4 divisors (see below), whose sum is σ = 1674195300. Its totient is φ = 1649931328.

The previous prime is 1662063287. The next prime is 1662063317. The reversal of 1662063313 is 3133602661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 968952384 + 693110929 = 31128^2 + 26327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662063313 - 2¹³ = 1662055121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662063317) 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, 6065788 + ... + 6066061.

It is an arithmetic number, because the mean of its divisors is an integer number (418548825).

Almost surely, 2^1662063313 is an apocalyptic number.

It is an amenable number.

1662063313 is a deficient number, since it is larger than the sum of its proper divisors (12131987).

1662063313 is a wasteful number, since it uses less digits than its factorization.

1662063313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131986.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 1662063313 is about 40768.4107244813. The cubic root of 1662063313 is about 1184.5385191141.

Adding to 1662063313 its reverse (3133602661), we get a palindrome (4795665974).

The spelling of 1662063313 in words is "one billion, six hundred sixty-two million, sixty-three thousand, three hundred thirteen".