21150162330256 has 20 divisors (see below), whose sum is σ = 42300324661504. Its totient is φ = 10233949514400.

The previous prime is 21150162330217. The next prime is 21150162330301. The reversal of 21150162330256 is 65203326105112.

21150162330256 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21320727660 + ... + 21320728651.

Almost surely, 2^{21150162330256} is an apocalyptic number.

It is an amenable number.

21150162330256 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21150162330256 is a wasteful number, since it uses less digits than its factorization.

21150162330256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42641456350 (or 42641456344 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 21150162330256 its reverse (65203326105112), we get a palindrome (86353488435368).

The spelling of 21150162330256 in words is "twenty-one trillion, one hundred fifty billion, one hundred sixty-two million, three hundred thirty thousand, two hundred fifty-six".