215032016512 has 32 divisors (see below), whose sum is σ = 428582880900. Its totient is φ = 107466117120.

The previous prime is 215032016449. The next prime is 215032016569. The reversal of 215032016512 is 215610230512.

It can be written as a sum of positive squares in 2 ways, for example, as 211283638336 + 3748378176 = 459656^2 + 61224^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×215032016512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112087 + ... + 665302.

Almost surely, 2^215032016512 is an apocalyptic number.

It is an amenable number.

215032016512 is a deficient number, since it is larger than the sum of its proper divisors (213550864388).

215032016512 is an equidigital number, since it uses as much as digits as its factorization.

215032016512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779564 (or 779552 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 215032016512 in words is "two hundred fifteen billion, thirty-two million, sixteen thousand, five hundred twelve".