1638068103 has 56 divisors (see below), whose sum is σ = 2903882400. Its totient is φ = 903680064.

The previous prime is 1638068087. The next prime is 1638068129. The reversal of 1638068103 is 3018608361.

1638068103 is a `hidden beast` number, since 1 + 638 + 0 + 6 + 8 + 10 + 3 = 666.

It is not a de Polignac number, because 1638068103 - 2⁴ = 1638068087 is a prime.

It is a super-2 number, since 2×1638068103² = 5366534220132037218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1638068183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 142453 + ... + 153521.

Almost surely, 2^1638068103 is an apocalyptic number.

1638068103 is a deficient number, since it is larger than the sum of its proper divisors (1265814297).

1638068103 is an equidigital number, since it uses as much as digits as its factorization.

1638068103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123 (or 11108 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1638068103 is about 40473.0540359879. The cubic root of 1638068103 is about 1178.8104700874.

The spelling of 1638068103 in words is "one billion, six hundred thirty-eight million, sixty-eight thousand, one hundred three".