215434030545151 has 6 divisors (see below), whose sum is σ = 236799388946456. Its totient is φ = 195849118677300.

The previous prime is 215434030545133. The next prime is 215434030545257. The reversal of 215434030545151 is 151545030434512.

It is not a de Polignac number, because 215434030545151 - 2⁴¹ = 213235007289599 is a prime.

It is a super-2 number, since 2×215434030545151² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215434030545098 and 215434030545107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215434030545131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890223266595 + ... + 890223266836.

Almost surely, 2^{215434030545151} is an apocalyptic number.

215434030545151 is a deficient number, since it is larger than the sum of its proper divisors (21365358401305).

215434030545151 is a wasteful number, since it uses less digits than its factorization.

215434030545151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780446533453 (or 1780446533442 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 215434030545151 its reverse (151545030434512), we get a palindrome (366979060979663).

The spelling of 215434030545151 in words is "two hundred fifteen trillion, four hundred thirty-four billion, thirty million, five hundred forty-five thousand, one hundred fifty-one".