155506101065 has 32 divisors (see below), whose sum is σ = 229710750720. Its totient is φ = 98671172544.

The previous prime is 155506101059. The next prime is 155506101083. The reversal of 155506101065 is 560101605551.

It is not a de Polignac number, because 155506101065 - 2¹² = 155506096969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 2690519 + ... + 2747708.

It is an arithmetic number, because the mean of its divisors is an integer number (7178460960).

Almost surely, 2^155506101065 is an apocalyptic number.

It is an amenable number.

155506101065 is a deficient number, since it is larger than the sum of its proper divisors (74204649655).

155506101065 is a wasteful number, since it uses less digits than its factorization.

155506101065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438301.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 155506101065 in words is "one hundred fifty-five billion, five hundred six million, one hundred one thousand, sixty-five".