1186504556201 has 2 divisors, whose sum is σ = 1186504556202. Its totient is φ = 1186504556200.

The previous prime is 1186504556137. The next prime is 1186504556239. The reversal of 1186504556201 is 1026554056811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707114491801 + 479390064400 = 840901^2 + 692380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186504556201 - 2⁶ = 1186504556137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1186504556701) 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, 593252278100 + 593252278101.

It is an arithmetic number, because the mean of its divisors is an integer number (593252278101).

Almost surely, 2^{1186504556201} is an apocalyptic number.

It is an amenable number.

1186504556201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186504556201 is an equidigital number, since it uses as much as digits as its factorization.

1186504556201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 1186504556201 in words is "one trillion, one hundred eighty-six billion, five hundred four million, five hundred fifty-six thousand, two hundred one".