1603630204138 has 16 divisors (see below), whose sum is σ = 2407720360320. Its totient is φ = 801057049936.

The previous prime is 1603630204097. The next prime is 1603630204159. The reversal of 1603630204138 is 8314020363061.

It is a junction number, because it is equal to n+sod(n) for n = 1603630204097 and 1603630204106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11032731 + ... + 11177137.

It is an arithmetic number, because the mean of its divisors is an integer number (150482522520).

Almost surely, 2^{1603630204138} is an apocalyptic number.

1603630204138 is a deficient number, since it is larger than the sum of its proper divisors (804090156182).

1603630204138 is a wasteful number, since it uses less digits than its factorization.

1603630204138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149621.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 1603630204138 its reverse (8314020363061), we get a palindrome (9917650567199).

The spelling of 1603630204138 in words is "one trillion, six hundred three billion, six hundred thirty million, two hundred four thousand, one hundred thirty-eight".