215265602412 has 144 divisors (see below), whose sum is σ = 656591353600. Its totient is φ = 58090919040.

The previous prime is 215265602411. The next prime is 215265602423. The reversal of 215265602412 is 214206562512.

215265602412 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 6 + 5 + 602 + 41 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (215265602411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1516914 + ... + 1652742.

Almost surely, 2^215265602412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215265602412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328295676800).

215265602412 is an abundant number, since it is smaller than the sum of its proper divisors (441325751188).

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

215265602412 is a wasteful number, since it uses less digits than its factorization.

215265602412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136196 (or 136191 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 215265602412 in words is "two hundred fifteen billion, two hundred sixty-five million, six hundred two thousand, four hundred twelve".