1660654488 has 32 divisors (see below), whose sum is σ = 4252898160. Its totient is φ = 540049920.

The previous prime is 1660654481. The next prime is 1660654493. The reversal of 1660654488 is 8844560661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660654481) 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 in 7 ways as a sum of consecutive naturals, for example, 842845 + ... + 844812.

Almost surely, 2^1660654488 is an apocalyptic number.

It is an amenable number.

1660654488 is an abundant number, since it is smaller than the sum of its proper divisors (2592243672).

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

1660654488 is a wasteful number, since it uses less digits than its factorization.

1660654488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687707 (or 1687703 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 1660654488 is about 40751.1286714859. The cubic root of 1660654488 is about 1184.2037386032.

The spelling of 1660654488 in words is "one billion, six hundred sixty million, six hundred fifty-four thousand, four hundred eighty-eight".