102006660664 has 8 divisors (see below), whose sum is σ = 191262488760. Its totient is φ = 51003330328.

The previous prime is 102006660661. The next prime is 102006660667. The reversal of 102006660664 is 466066600201.

It is an interprime number because it is at equal distance from previous prime (102006660661) and next prime (102006660667).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102006660661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375416284 + ... + 6375416299.

It is an arithmetic number, because the mean of its divisors is an integer number (23907811095).

Almost surely, 2^102006660664 is an apocalyptic number.

It is an amenable number.

102006660664 is a deficient number, since it is larger than the sum of its proper divisors (89255828096).

102006660664 is a wasteful number, since it uses less digits than its factorization.

102006660664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12750832589 (or 12750832585 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 102006660664 in words is "one hundred two billion, six million, six hundred sixty thousand, six hundred sixty-four".