215215566167 has 16 divisors (see below), whose sum is σ = 259903395840. Its totient is φ = 174216474432.

The previous prime is 215215566157. The next prime is 215215566187. The reversal of 215215566167 is 761665512512.

It is not a de Polignac number, because 215215566167 - 2⁶ = 215215566103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215215566107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8447678 + ... + 8473115.

It is an arithmetic number, because the mean of its divisors is an integer number (16243962240).

Almost surely, 2^215215566167 is an apocalyptic number.

215215566167 is a deficient number, since it is larger than the sum of its proper divisors (44687829673).

215215566167 is a wasteful number, since it uses less digits than its factorization.

215215566167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920902.

The product of its digits is 756000, while the sum is 47.

The spelling of 215215566167 in words is "two hundred fifteen billion, two hundred fifteen million, five hundred sixty-six thousand, one hundred sixty-seven".