1655555549975 has 12 divisors (see below), whose sum is σ = 2053645652016. Its totient is φ = 1323956201280.

The previous prime is 1655555549969. The next prime is 1655555549987. The reversal of 1655555549975 is 5799455555561.

It is not a de Polignac number, because 1655555549975 - 2¹⁸ = 1655555287831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1655555549899 and 1655555549908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12136787 + ... + 12272436.

It is an arithmetic number, because the mean of its divisors is an integer number (171137137668).

Almost surely, 2^{1655555549975} is an apocalyptic number.

1655555549975 is a deficient number, since it is larger than the sum of its proper divisors (398090102041).

1655555549975 is a wasteful number, since it uses less digits than its factorization.

1655555549975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411946 (or 24411941 counting only the distinct ones).

The product of its digits is 1063125000, while the sum is 71.

The spelling of 1655555549975 in words is "one trillion, six hundred fifty-five billion, five hundred fifty-five million, five hundred forty-nine thousand, nine hundred seventy-five".