215005032032155 has 16 divisors (see below), whose sum is σ = 260337130099200. Its totient is φ = 170453616842080.

The previous prime is 215005032032137. The next prime is 215005032032183. The reversal of 215005032032155 is 551230230500512.

It is not a de Polignac number, because 215005032032155 - 2⁷ = 215005032032027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215005032032155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227798845 + ... + 228740734.

It is an arithmetic number, because the mean of its divisors is an integer number (16271070631200).

Almost surely, 2^{215005032032155} is an apocalyptic number.

215005032032155 is a deficient number, since it is larger than the sum of its proper divisors (45332098067045).

215005032032155 is a wasteful number, since it uses less digits than its factorization.

215005032032155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456540434.

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 215005032032155 its reverse (551230230500512), we get a palindrome (766235262532667).

The spelling of 215005032032155 in words is "two hundred fifteen trillion, five billion, thirty-two million, thirty-two thousand, one hundred fifty-five".