215054153226 has 80 divisors (see below), whose sum is σ = 526467379680. Its totient is φ = 65071300320.

The previous prime is 215054153213. The next prime is 215054153267. The reversal of 215054153226 is 622351450512.

215054153226 is a `hidden beast` number, since 2 + 1 + 50 + 54 + 1 + 532 + 26 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1117285 + ... + 1295543.

It is an arithmetic number, because the mean of its divisors is an integer number (6580842246).

Almost surely, 2^215054153226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215054153226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263233689840).

215054153226 is an abundant number, since it is smaller than the sum of its proper divisors (311413226454).

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

215054153226 is a wasteful number, since it uses less digits than its factorization.

215054153226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178961 (or 178952 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 215054153226 in words is "two hundred fifteen billion, fifty-four million, one hundred fifty-three thousand, two hundred twenty-six".