664111666614 has 32 divisors (see below), whose sum is σ = 1449040803840. Its totient is φ = 201236252000.

The previous prime is 664111666583. The next prime is 664111666639. The reversal of 664111666614 is 416666111466.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 1200427 + ... + 1664105.

It is an arithmetic number, because the mean of its divisors is an integer number (45282525120).

Almost surely, 2^664111666614 is an apocalyptic number.

664111666614 is an abundant number, since it is smaller than the sum of its proper divisors (784929137226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664111666614 is a wasteful number, since it uses less digits than its factorization.

664111666614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485396.

The product of its digits is 746496, while the sum is 48.

The spelling of 664111666614 in words is "six hundred sixty-four billion, one hundred eleven million, six hundred sixty-six thousand, six hundred fourteen".