1655103609 has 12 divisors (see below), whose sum is σ = 2467825152. Its totient is φ = 1067808600.

The previous prime is 1655103589. The next prime is 1655103643. The reversal of 1655103609 is 9063015561.

It is not a de Polignac number, because 1655103609 - 2¹¹ = 1655101561 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1655113609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2965857 + ... + 2966414.

It is an arithmetic number, because the mean of its divisors is an integer number (205652096).

Almost surely, 2^1655103609 is an apocalyptic number.

It is an amenable number.

1655103609 is a deficient number, since it is larger than the sum of its proper divisors (812721543).

1655103609 is a wasteful number, since it uses less digits than its factorization.

1655103609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932308 (or 5932305 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 1655103609 is about 40682.9646043648. The cubic root of 1655103609 is about 1182.8828318240.

The spelling of 1655103609 in words is "one billion, six hundred fifty-five million, one hundred three thousand, six hundred nine".