1550404106201 has 2 divisors, whose sum is σ = 1550404106202. Its totient is φ = 1550404106200.

The previous prime is 1550404106189. The next prime is 1550404106233. The reversal of 1550404106201 is 1026014040551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 827990803600 + 722413302601 = 909940^2 + 849949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550404106201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1550404103201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775202053100 + 775202053101.

It is an arithmetic number, because the mean of its divisors is an integer number (775202053101).

Almost surely, 2^{1550404106201} is an apocalyptic number.

It is an amenable number.

1550404106201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550404106201 is an equidigital number, since it uses as much as digits as its factorization.

1550404106201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1550404106201 its reverse (1026014040551), we get a palindrome (2576418146752).

The spelling of 1550404106201 in words is "one trillion, five hundred fifty billion, four hundred four million, one hundred six thousand, two hundred one".