1664102303426 has 16 divisors (see below), whose sum is σ = 2604757454208. Its totient is φ = 795851918400.

The previous prime is 1664102303417. The next prime is 1664102303473. The reversal of 1664102303426 is 6243032014661.

It is a self number, because there is not a number n which added to its sum of digits gives 1664102303426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133786 + ... + 2147946.

It is an arithmetic number, because the mean of its divisors is an integer number (162797340888).

Almost surely, 2^{1664102303426} is an apocalyptic number.

1664102303426 is a deficient number, since it is larger than the sum of its proper divisors (940655150782).

1664102303426 is a wasteful number, since it uses less digits than its factorization.

1664102303426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049857.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 1664102303426 in words is "one trillion, six hundred sixty-four billion, one hundred two million, three hundred three thousand, four hundred twenty-six".