102666565944 has 48 divisors (see below), whose sum is σ = 284837127120. Its totient is φ = 33387500160.

The previous prime is 102666565931. The next prime is 102666565993. The reversal of 102666565944 is 449565666201.

It is a super-4 number, since 4×102666565944⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

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 11 ways as a sum of consecutive naturals, for example, 17386372 + ... + 17392275.

It is an arithmetic number, because the mean of its divisors is an integer number (5934106815).

Almost surely, 2^102666565944 is an apocalyptic number.

It is an amenable number.

102666565944 is an abundant number, since it is smaller than the sum of its proper divisors (182170561176).

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

102666565944 is a wasteful number, since it uses less digits than its factorization.

102666565944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34778700 (or 34778693 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 102666565944 in words is "one hundred two billion, six hundred sixty-six million, five hundred sixty-five thousand, nine hundred forty-four".