1655260865325 has 60 divisors (see below), whose sum is σ = 3068191171188. Its totient is φ = 882208108800.

The previous prime is 1655260865287. The next prime is 1655260865333. The reversal of 1655260865325 is 5235680625561.

1655260865325 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 2 + 608 + 6 + 5 + 3 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 44602905636 + 1610657959689 = 211194^2 + 1269117^2 .

It is not a de Polignac number, because 1655260865325 - 2⁷ = 1655260865197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2723059 + ... + 3274991.

Almost surely, 2^{1655260865325} is an apocalyptic number.

1655260865325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1655260865325 is a deficient number, since it is larger than the sum of its proper divisors (1412930305863).

1655260865325 is a wasteful number, since it uses less digits than its factorization.

1655260865325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553436 (or 553422 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 1655260865325 in words is "one trillion, six hundred fifty-five billion, two hundred sixty million, eight hundred sixty-five thousand, three hundred twenty-five".