215324742199 has 16 divisors (see below), whose sum is σ = 263724922368. Its totient is φ = 171768196512.

The previous prime is 215324742187. The next prime is 215324742251. The reversal of 215324742199 is 991247423512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 215324742199 - 2¹⁷ = 215324611127 is a prime.

It is a super-2 number, since 2×215324742199² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215324742169) 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, 18067297 + ... + 18079210.

It is an arithmetic number, because the mean of its divisors is an integer number (16482807648).

Almost surely, 2^215324742199 is an apocalyptic number.

215324742199 is a deficient number, since it is larger than the sum of its proper divisors (48400180169).

215324742199 is a wasteful number, since it uses less digits than its factorization.

215324742199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36146574.

The product of its digits is 1088640, while the sum is 49.

The spelling of 215324742199 in words is "two hundred fifteen billion, three hundred twenty-four million, seven hundred forty-two thousand, one hundred ninety-nine".