2031104163556 has 12 divisors (see below), whose sum is σ = 3827850154492. Its totient is φ = 937432690848.

The previous prime is 2031104163547. The next prime is 2031104163559. The reversal of 2031104163556 is 6553614011302.

It can be written as a sum of positive squares in 2 ways, for example, as 209187316900 + 1821916846656 = 457370^2 + 1349784^2 .

It is not an unprimeable number, because it can be changed into a prime (2031104163559) 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, 19529847675 + ... + 19529847778.

Almost surely, 2^{2031104163556} is an apocalyptic number.

2031104163556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2031104163556 is a deficient number, since it is larger than the sum of its proper divisors (1796745990936).

2031104163556 is a wasteful number, since it uses less digits than its factorization.

2031104163556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39059695470 (or 39059695468 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 2031104163556 its reverse (6553614011302), we get a palindrome (8584718174858).

The spelling of 2031104163556 in words is "two trillion, thirty-one billion, one hundred four million, one hundred sixty-three thousand, five hundred fifty-six".