88888888666664 has 8 divisors (see below), whose sum is σ = 166666666250010. Its totient is φ = 44444444333328.

The previous prime is 88888888666661. The next prime is 88888888666703. The reversal of 88888888666664 is 46666688888888.

It can be written as a sum of positive squares in only one way, i.e., 87459118433764 + 1429770232900 = 9351958^2 + 1195730^2 .

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

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (88888888666661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555541659 + ... + 5555555541674.

Almost surely, 2^{88888888666664} is an apocalyptic number.

It is an amenable number.

88888888666664 is a deficient number, since it is larger than the sum of its proper divisors (77777777583346).

88888888666664 is a wasteful number, since it uses less digits than its factorization.

88888888666664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111111083339 (or 11111111083335 counting only the distinct ones).

The product of its digits is 521838526464, while the sum is 98.

The spelling of 88888888666664 in words is "eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, six hundred sixty-six thousand, six hundred sixty-four".