215341355523 has 16 divisors (see below), whose sum is σ = 328146494720. Its totient is φ = 123049470816.

The previous prime is 215341355519. The next prime is 215341355549. The reversal of 215341355523 is 325553143512.

It is not a de Polignac number, because 215341355523 - 2² = 215341355519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215341355563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215261 + ... + 1381137.

It is an arithmetic number, because the mean of its divisors is an integer number (20509155920).

Almost surely, 2^215341355523 is an apocalyptic number.

215341355523 is a deficient number, since it is larger than the sum of its proper divisors (112805139197).

215341355523 is a wasteful number, since it uses less digits than its factorization.

215341355523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227706.

The product of its digits is 270000, while the sum is 39.

The spelling of 215341355523 in words is "two hundred fifteen billion, three hundred forty-one million, three hundred fifty-five thousand, five hundred twenty-three".