1005550961049 has 8 divisors (see below), whose sum is σ = 1489705127520. Its totient is φ = 670367307348.

The previous prime is 1005550960969. The next prime is 1005550961057. The reversal of 1005550961049 is 9401690555001.

It is a happy number.

1005550961049 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 550 + 96 + 1 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 1005550961049 - 2¹¹ = 1005550959001 is a prime.

It is a super-2 number, since 2×1005550961049² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1005550960995 and 1005550961013.

It is not an unprimeable number, because it can be changed into a prime (1005550961449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18621314067 + ... + 18621314120.

It is an arithmetic number, because the mean of its divisors is an integer number (186213140940).

Almost surely, 2^{1005550961049} is an apocalyptic number.

It is an amenable number.

1005550961049 is a deficient number, since it is larger than the sum of its proper divisors (484154166471).

1005550961049 is an equidigital number, since it uses as much as digits as its factorization.

1005550961049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37242628196 (or 37242628190 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 1005550961049 in words is "one trillion, five billion, five hundred fifty million, nine hundred sixty-one thousand, forty-nine".