36666245311777 has 16 divisors (see below), whose sum is σ = 38968046283600. Its totient is φ = 34434211553280.

The previous prime is 36666245311697. The next prime is 36666245311793. The reversal of 36666245311777 is 77711354266663.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8842350484881 + 27823894826896 = 2973609^2 + 5274836^2 .

It is a cyclic number.

It is not a de Polignac number, because 36666245311777 - 2¹⁵ = 36666245279009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36666245311877) 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 in 15 ways as a sum of consecutive naturals, for example, 1991224 + ... + 8791897.

It is an arithmetic number, because the mean of its divisors is an integer number (2435502892725).

Almost surely, 2^{36666245311777} is an apocalyptic number.

36666245311777 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

36666245311777 is a deficient number, since it is larger than the sum of its proper divisors (2301800971823).

36666245311777 is a wasteful number, since it uses less digits than its factorization.

36666245311777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786356.

The product of its digits is 160030080, while the sum is 64.

The spelling of 36666245311777 in words is "thirty-six trillion, six hundred sixty-six billion, two hundred forty-five million, three hundred eleven thousand, seven hundred seventy-seven".