647066007066 has 64 divisors (see below), whose sum is σ = 1405047676032. Its totient is φ = 197909471232.

The previous prime is 647066007047. The next prime is 647066007143. The reversal of 647066007066 is 660700660746.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174840 + ... + 1150956.

It is an arithmetic number, because the mean of its divisors is an integer number (21953869938).

Almost surely, 2^647066007066 is an apocalyptic number.

647066007066 is an abundant number, since it is smaller than the sum of its proper divisors (757981668966).

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

647066007066 is a wasteful number, since it uses less digits than its factorization.

647066007066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976303.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 647066007066 in words is "six hundred forty-seven billion, sixty-six million, seven thousand, sixty-six".