340666510664 has 8 divisors (see below), whose sum is σ = 638749707510. Its totient is φ = 170333255328.

The previous prime is 340666510663. The next prime is 340666510733. The reversal of 340666510664 is 466015666043.

It can be written as a sum of positive squares in only one way, i.e., 329198242564 + 11468268100 = 573758^2 + 107090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (340666510663) 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 as a sum of consecutive naturals, namely, 21291656909 + ... + 21291656924.

Almost surely, 2^340666510664 is an apocalyptic number.

It is an amenable number.

340666510664 is a deficient number, since it is larger than the sum of its proper divisors (298083196846).

340666510664 is a wasteful number, since it uses less digits than its factorization.

340666510664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42583313839 (or 42583313835 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 340666510664 in words is "three hundred forty billion, six hundred sixty-six million, five hundred ten thousand, six hundred sixty-four".