165061620003055 has 16 divisors (see below), whose sum is σ = 198963202523904. Its totient is φ = 131456463148800.

The previous prime is 165061620003053. The next prime is 165061620003067. The reversal of 165061620003055 is 550300026160561.

It is not a de Polignac number, because 165061620003055 - 2¹ = 165061620003053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165061620002999 and 165061620003017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165061620003053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418102755 + ... + 418497355.

It is an arithmetic number, because the mean of its divisors is an integer number (12435200157744).

Almost surely, 2^{165061620003055} is an apocalyptic number.

165061620003055 is a deficient number, since it is larger than the sum of its proper divisors (33901582520849).

165061620003055 is a wasteful number, since it uses less digits than its factorization.

165061620003055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769986.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 165061620003055 in words is "one hundred sixty-five trillion, sixty-one billion, six hundred twenty million, three thousand, fifty-five".