188480664 has 96 divisors (see below), whose sum is σ = 529074000. Its totient is φ = 60569856.

The previous prime is 188480659. The next prime is 188480687. The reversal of 188480664 is 466084881.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 370042 + ... + 370550.

Almost surely, 2^188480664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188480664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264537000).

188480664 is an abundant number, since it is smaller than the sum of its proper divisors (340593336).

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

188480664 is a wasteful number, since it uses less digits than its factorization.

188480664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 188480664 is about 13728.8260240998. The cubic root of 188480664 is about 573.3532355930.

The spelling of 188480664 in words is "one hundred eighty-eight million, four hundred eighty thousand, six hundred sixty-four".