1655056065 has 64 divisors (see below), whose sum is σ = 2946650112. Its totient is φ = 787968000.

The previous prime is 1655056027. The next prime is 1655056121. The reversal of 1655056065 is 5606505561.

It is not a de Polignac number, because 1655056065 - 2¹⁹ = 1654531777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

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 63 ways as a sum of consecutive naturals, for example, 1377465 + ... + 1378665.

It is an arithmetic number, because the mean of its divisors is an integer number (46041408).

Almost surely, 2^1655056065 is an apocalyptic number.

1655056065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1655056065 is a deficient number, since it is larger than the sum of its proper divisors (1291594047).

1655056065 is a wasteful number, since it uses less digits than its factorization.

1655056065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1655056065 is about 40682.3802769700. The cubic root of 1655056065 is about 1182.8715053387.

The spelling of 1655056065 in words is "one billion, six hundred fifty-five million, fifty-six thousand, sixty-five".