215323262155 has 8 divisors (see below), whose sum is σ = 258568993872. Its totient is φ = 172137890208.

The previous prime is 215323262129. The next prime is 215323262171. The reversal of 215323262155 is 551262323512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215323262155 - 2³⁵ = 180963523787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15082092 + ... + 15096361.

It is an arithmetic number, because the mean of its divisors is an integer number (32321124234).

Almost surely, 2^215323262155 is an apocalyptic number.

215323262155 is a deficient number, since it is larger than the sum of its proper divisors (43245731717).

215323262155 is a wasteful number, since it uses less digits than its factorization.

215323262155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30179885.

The product of its digits is 108000, while the sum is 37.

Adding to 215323262155 its reverse (551262323512), we get a palindrome (766585585667).

The spelling of 215323262155 in words is "two hundred fifteen billion, three hundred twenty-three million, two hundred sixty-two thousand, one hundred fifty-five".