6550146895249 has 2 divisors, whose sum is σ = 6550146895250. Its totient is φ = 6550146895248.

The previous prime is 6550146895219. The next prime is 6550146895307. The reversal of 6550146895249 is 9425986410556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5229486255249 + 1320660640000 = 2286807^2 + 1149200^2 .

It is a cyclic number.

It is not a de Polignac number, because 6550146895249 - 2¹⁷ = 6550146764177 is a prime.

It is a super-2 number, since 2×6550146895249² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6550146895219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275073447624 + 3275073447625.

It is an arithmetic number, because the mean of its divisors is an integer number (3275073447625).

Almost surely, 2^{6550146895249} is an apocalyptic number.

It is an amenable number.

6550146895249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550146895249 is an equidigital number, since it uses as much as digits as its factorization.

6550146895249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 6550146895249 in words is "six trillion, five hundred fifty billion, one hundred forty-six million, eight hundred ninety-five thousand, two hundred forty-nine".