660064264446 has 8 divisors (see below), whose sum is σ = 1320128528904. Its totient is φ = 220021421480.

The previous prime is 660064264427. The next prime is 660064264507. The reversal of 660064264446 is 644462460066.

It is a sphenic number, since it is the product of 3 distinct primes.

660064264446 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 660064264395 and 660064264404.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 55005355365 + ... + 55005355376.

It is an arithmetic number, because the mean of its divisors is an integer number (165016066113).

Almost surely, 2^660064264446 is an apocalyptic number.

660064264446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

660064264446 is a wasteful number, since it uses less digits than its factorization.

660064264446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110010710746.

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 660064264446 in words is "six hundred sixty billion, sixty-four million, two hundred sixty-four thousand, four hundred forty-six".