215235011164566 has 8 divisors (see below), whose sum is σ = 430470022329144. Its totient is φ = 71745003721520.

The previous prime is 215235011164541. The next prime is 215235011164643. The reversal of 215235011164566 is 665461110532512.

It is a sphenic number, since it is the product of 3 distinct primes.

215235011164566 is an admirable number.

It is a super-2 number, since 2×215235011164566² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17936250930375 + ... + 17936250930386.

It is an arithmetic number, because the mean of its divisors is an integer number (53808752791143).

Almost surely, 2^{215235011164566} is an apocalyptic number.

215235011164566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215235011164566 is a wasteful number, since it uses less digits than its factorization.

215235011164566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35872501860766.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 215235011164566 in words is "two hundred fifteen trillion, two hundred thirty-five billion, eleven million, one hundred sixty-four thousand, five hundred sixty-six".