215440258150 has 48 divisors (see below), whose sum is σ = 431648560224. Its totient is φ = 79527790080.

The previous prime is 215440258127. The next prime is 215440258213. The reversal of 215440258150 is 51852044512.

215440258150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2780839 + ... + 2857261.

It is an arithmetic number, because the mean of its divisors is an integer number (8992678338).

Almost surely, 2^215440258150 is an apocalyptic number.

215440258150 is an abundant number, since it is smaller than the sum of its proper divisors (216208302074).

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

215440258150 is a wasteful number, since it uses less digits than its factorization.

215440258150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80785 (or 80780 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 215440258150 in words is "two hundred fifteen billion, four hundred forty million, two hundred fifty-eight thousand, one hundred fifty".