215071512162 has 48 divisors (see below), whose sum is σ = 466915891680. Its totient is φ = 66013923456.

The previous prime is 215071512143. The next prime is 215071512179. The reversal of 215071512162 is 261215170512.

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, 155433 + ... + 674019.

It is an arithmetic number, because the mean of its divisors is an integer number (9727414410).

Almost surely, 2^215071512162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215071512162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233457945840).

215071512162 is an abundant number, since it is smaller than the sum of its proper divisors (251844379518).

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

215071512162 is a wasteful number, since it uses less digits than its factorization.

215071512162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519027 (or 519014 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

Adding to 215071512162 its reverse (261215170512), we get a palindrome (476286682674).

The spelling of 215071512162 in words is "two hundred fifteen billion, seventy-one million, five hundred twelve thousand, one hundred sixty-two".