1655379648 has 84 divisors (see below), whose sum is σ = 5109858208. Its totient is φ = 509345280.

The previous prime is 1655379599. The next prime is 1655379659. The reversal of 1655379648 is 8469735561.

1655379648 is a `hidden beast` number, since 1 + 65 + 537 + 9 + 6 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1655379594 and 1655379603.

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 in 11 ways as a sum of consecutive naturals, for example, 103048 + ... + 118023.

Almost surely, 2^1655379648 is an apocalyptic number.

1655379648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1655379648 is an abundant number, since it is smaller than the sum of its proper divisors (3454478560).

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

1655379648 is a wasteful number, since it uses less digits than its factorization.

1655379648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221102 (or 221089 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 1655379648 is about 40686.3570254207. The cubic root of 1655379648 is about 1182.9485887634.

The spelling of 1655379648 in words is "one billion, six hundred fifty-five million, three hundred seventy-nine thousand, six hundred forty-eight".