215052164047 has 32 divisors (see below), whose sum is σ = 263389916160. Its totient is φ = 171610771200.

The previous prime is 215052164039. The next prime is 215052164057. The reversal of 215052164047 is 740461250512.

It is a cyclic number.

It is not a de Polignac number, because 215052164047 - 2³ = 215052164039 is a prime.

It is a super-2 number, since 2×215052164047² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215052163997 and 215052164015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215052164017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847323 + ... + 1071475.

It is an arithmetic number, because the mean of its divisors is an integer number (8230934880).

Almost surely, 2^215052164047 is an apocalyptic number.

215052164047 is a deficient number, since it is larger than the sum of its proper divisors (48337752113).

215052164047 is a wasteful number, since it uses less digits than its factorization.

215052164047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224343.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 215052164047 in words is "two hundred fifteen billion, fifty-two million, one hundred sixty-four thousand, forty-seven".