1656488608 has 24 divisors (see below), whose sum is σ = 3266247348. Its totient is φ = 826965504.

The previous prime is 1656488597. The next prime is 1656488621. The reversal of 1656488608 is 8068846561.

It can be written as a sum of positive squares in 2 ways, for example, as 1493977104 + 162511504 = 38652^2 + 12748^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18741 + ... + 60532.

Almost surely, 2^1656488608 is an apocalyptic number.

It is an amenable number.

1656488608 is a deficient number, since it is larger than the sum of its proper divisors (1609758740).

1656488608 is an equidigital number, since it uses as much as digits as its factorization.

1656488608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79936 (or 79928 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 1656488608 is about 40699.9828992593. The cubic root of 1656488608 is about 1183.2126872614.

The spelling of 1656488608 in words is "one billion, six hundred fifty-six million, four hundred eighty-eight thousand, six hundred eight".