215545315159 has 4 divisors (see below), whose sum is σ = 215547479320. Its totient is φ = 215543151000.

The previous prime is 215545315157. The next prime is 215545315171. The reversal of 215545315159 is 951513545512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215545315159 - 2¹ = 215545315157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215545315157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925092 + ... + 1134409.

It is an arithmetic number, because the mean of its divisors is an integer number (53886869830).

Almost surely, 2^215545315159 is an apocalyptic number.

215545315159 is a deficient number, since it is larger than the sum of its proper divisors (2164161).

215545315159 is a wasteful number, since it uses less digits than its factorization.

215545315159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164160.

The product of its digits is 675000, while the sum is 46.

The spelling of 215545315159 in words is "two hundred fifteen billion, five hundred forty-five million, three hundred fifteen thousand, one hundred fifty-nine".