215033522065536 has 64 divisors (see below), whose sum is σ = 571221619087680. Its totient is φ = 71672968393728.

The previous prime is 215033522065507. The next prime is 215033522065577. The reversal of 215033522065536 is 635560225330512.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×215033522065536² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13373716 + ... + 24676371.

It is an arithmetic number, because the mean of its divisors is an integer number (8925337798245).

Almost surely, 2^{215033522065536} is an apocalyptic number.

It is an amenable number.

215033522065536 is an abundant number, since it is smaller than the sum of its proper divisors (356188097022144).

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

215033522065536 is a wasteful number, since it uses less digits than its factorization.

215033522065536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38064821 (or 38064809 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 48.

The spelling of 215033522065536 in words is "two hundred fifteen trillion, thirty-three billion, five hundred twenty-two million, sixty-five thousand, five hundred thirty-six".