215161322641522 has 16 divisors (see below), whose sum is σ = 328034800839744. Its totient is φ = 105816410154000.

The previous prime is 215161322641487. The next prime is 215161322641591. The reversal of 215161322641522 is 225146223161512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15505747 + ... + 25898857.

It is an arithmetic number, because the mean of its divisors is an integer number (20502175052484).

Almost surely, 2^{215161322641522} is an apocalyptic number.

215161322641522 is a deficient number, since it is larger than the sum of its proper divisors (112873478198222).

215161322641522 is a wasteful number, since it uses less digits than its factorization.

215161322641522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10562865.

The product of its digits is 345600, while the sum is 43.

The spelling of 215161322641522 in words is "two hundred fifteen trillion, one hundred sixty-one billion, three hundred twenty-two million, six hundred forty-one thousand, five hundred twenty-two".