36664676171545 has 4 divisors (see below), whose sum is σ = 43997611405860. Its totient is φ = 29331740937232.

The previous prime is 36664676171531. The next prime is 36664676171549. The reversal of 36664676171545 is 54517167646663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8870312586249 + 27794363585296 = 2978307^2 + 5272036^2 .

It is a cyclic number.

It is not a de Polignac number, because 36664676171545 - 2¹⁵ = 36664676138777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36664676171549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666467617150 + ... + 3666467617159.

It is an arithmetic number, because the mean of its divisors is an integer number (10999402851465).

Almost surely, 2^{36664676171545} is an apocalyptic number.

It is an amenable number.

36664676171545 is a deficient number, since it is larger than the sum of its proper divisors (7332935234315).

36664676171545 is an equidigital number, since it uses as much as digits as its factorization.

36664676171545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332935234314.

The product of its digits is 457228800, while the sum is 67.

The spelling of 36664676171545 in words is "thirty-six trillion, six hundred sixty-four billion, six hundred seventy-six million, one hundred seventy-one thousand, five hundred forty-five".