3666331250145 has 24 divisors (see below), whose sum is σ = 6355022370216. Its totient is φ = 1955361835008.

The previous prime is 3666331250059. The next prime is 3666331250203. The reversal of 3666331250145 is 5410521336663.

It can be written as a sum of positive squares in 4 ways, for example, as 10889339904 + 3655441910241 = 104352^2 + 1911921^2 .

It is not a de Polignac number, because 3666331250145 - 2¹⁰ = 3666331249121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3666331250145.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 8365899 + ... + 8793231.

It is an arithmetic number, because the mean of its divisors is an integer number (264792598759).

Almost surely, 2^{3666331250145} is an apocalyptic number.

It is an amenable number.

3666331250145 is a deficient number, since it is larger than the sum of its proper divisors (2688691120071).

3666331250145 is a wasteful number, since it uses less digits than its factorization.

3666331250145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618001 (or 617998 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 3666331250145 in words is "three trillion, six hundred sixty-six billion, three hundred thirty-one million, two hundred fifty thousand, one hundred forty-five".