1550404103201 has 2 divisors, whose sum is σ = 1550404103202. Its totient is φ = 1550404103200.

The previous prime is 1550404103161. The next prime is 1550404103359. The reversal of 1550404103201 is 1023014040551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1314693853201 + 235710250000 = 1146601^2 + 485500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550404103201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1550404106201) by changing a digit.

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 as a sum of consecutive naturals, namely, 775202051600 + 775202051601.

It is an arithmetic number, because the mean of its divisors is an integer number (775202051601).

Almost surely, 2^{1550404103201} is an apocalyptic number.

It is an amenable number.

1550404103201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550404103201 is an equidigital number, since it uses as much as digits as its factorization.

1550404103201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1550404103201 its reverse (1023014040551), we get a palindrome (2573418143752).

The spelling of 1550404103201 in words is "one trillion, five hundred fifty billion, four hundred four million, one hundred three thousand, two hundred one".