155601101165 has 16 divisors (see below), whose sum is σ = 189788406912. Its totient is φ = 122441651904.

The previous prime is 155601101101. The next prime is 155601101189. The reversal of 155601101165 is 561101106551.

It is a cyclic number.

It is not a de Polignac number, because 155601101165 - 2⁶ = 155601101101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116249 + ... + 569838.

It is an arithmetic number, because the mean of its divisors is an integer number (11861775432).

Almost surely, 2^155601101165 is an apocalyptic number.

It is an amenable number.

155601101165 is a deficient number, since it is larger than the sum of its proper divisors (34187305747).

155601101165 is an equidigital number, since it uses as much as digits as its factorization.

155601101165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686836.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 155601101165 in words is "one hundred fifty-five billion, six hundred one million, one hundred one thousand, one hundred sixty-five".