664710630720046 has 16 divisors (see below), whose sum is σ = 1024122924327888. Its totient is φ = 323379787636800.

The previous prime is 664710630720029. The next prime is 664710630720077. The reversal of 664710630720046 is 640027036017466.

It is a super-2 number, since 2×664710630720046² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664710630719975 and 664710630720002.

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 7 ways as a sum of consecutive naturals, for example, 10866225720 + ... + 10866286891.

It is an arithmetic number, because the mean of its divisors is an integer number (64007682770493).

Almost surely, 2^{664710630720046} is an apocalyptic number.

664710630720046 is a deficient number, since it is larger than the sum of its proper divisors (359412293607842).

664710630720046 is a wasteful number, since it uses less digits than its factorization.

664710630720046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21732513027.

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 664710630720046 in words is "six hundred sixty-four trillion, seven hundred ten billion, six hundred thirty million, seven hundred twenty thousand, forty-six".