90664241608 has 8 divisors (see below), whose sum is σ = 169995453030. Its totient is φ = 45332120800.

The previous prime is 90664241567. The next prime is 90664241671. The reversal of 90664241608 is 80614246609.

It can be written as a sum of positive squares in only one way, i.e., 77895693604 + 12768548004 = 279098^2 + 112998^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666515093 + ... + 5666515108.

Almost surely, 2^90664241608 is an apocalyptic number.

It is an amenable number.

90664241608 is a deficient number, since it is larger than the sum of its proper divisors (79331211422).

90664241608 is a wasteful number, since it uses less digits than its factorization.

90664241608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333030207 (or 11333030203 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 90664241608 in words is "ninety billion, six hundred sixty-four million, two hundred forty-one thousand, six hundred eight".