5145665440306 has 4 divisors (see below), whose sum is σ = 7718498160462. Its totient is φ = 2572832720152.

The previous prime is 5145665440249. The next prime is 5145665440327. The reversal of 5145665440306 is 6030445665415.

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

It can be written as a sum of positive squares in only one way, i.e., 4623536358081 + 522129082225 = 2150241^2 + 722585^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5145665440306.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1286416360075 + ... + 1286416360078.

Almost surely, 2^{5145665440306} is an apocalyptic number.

5145665440306 is a deficient number, since it is larger than the sum of its proper divisors (2572832720156).

5145665440306 is a wasteful number, since it uses less digits than its factorization.

5145665440306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572832720155.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 5145665440306 in words is "five trillion, one hundred forty-five billion, six hundred sixty-five million, four hundred forty thousand, three hundred six".