155505005015 has 32 divisors (see below), whose sum is σ = 191669587200. Its totient is φ = 121083955200.

The previous prime is 155505005011. The next prime is 155505005053. The reversal of 155505005015 is 510500505551.

It is not a de Polignac number, because 155505005015 - 2² = 155505005011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155505005011) by changing a digit.

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, 9287171 + ... + 9303899.

It is an arithmetic number, because the mean of its divisors is an integer number (5989674600).

Almost surely, 2^155505005015 is an apocalyptic number.

155505005015 is a deficient number, since it is larger than the sum of its proper divisors (36164582185).

155505005015 is a wasteful number, since it uses less digits than its factorization.

155505005015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17147.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 155505005015 in words is "one hundred fifty-five billion, five hundred five million, five thousand, fifteen".