215525340330012 has 72 divisors (see below), whose sum is σ = 553747734251712. Its totient is φ = 70661950819200.

The previous prime is 215525340329963. The next prime is 215525340330077. The reversal of 215525340330012 is 210033043525512.

215525340330012 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 2 + 5 + 340 + 3 + 300 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73504962 + ... + 76380822.

It is an arithmetic number, because the mean of its divisors is an integer number (7690940753496).

Almost surely, 2^{215525340330012} is an apocalyptic number.

It is an amenable number.

215525340330012 is an abundant number, since it is smaller than the sum of its proper divisors (338222393921700).

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

215525340330012 is a wasteful number, since it uses less digits than its factorization.

215525340330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910059 (or 2910054 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 215525340330012 its reverse (210033043525512), we get a palindrome (425558383855524).

The spelling of 215525340330012 in words is "two hundred fifteen trillion, five hundred twenty-five billion, three hundred forty million, three hundred thirty thousand, twelve".