1662630434338 has 8 divisors (see below), whose sum is σ = 2493951220332. Its totient is φ = 831313360896.

The previous prime is 1662630434329. The next prime is 1662630434351. The reversal of 1662630434338 is 8334340362661.

It can be written as a sum of positive squares in 2 ways, for example, as 1546583242689 + 116047191649 = 1243617^2 + 340657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1662630434338² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1662630434291 and 1662630434300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958306 + ... + 2060002.

Almost surely, 2^{1662630434338} is an apocalyptic number.

1662630434338 is a deficient number, since it is larger than the sum of its proper divisors (831320785994).

1662630434338 is a wasteful number, since it uses less digits than its factorization.

1662630434338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856276.

The product of its (nonzero) digits is 4478976, while the sum is 49.

Adding to 1662630434338 its reverse (8334340362661), we get a palindrome (9996970796999).

The spelling of 1662630434338 in words is "one trillion, six hundred sixty-two billion, six hundred thirty million, four hundred thirty-four thousand, three hundred thirty-eight".