215133034154 has 16 divisors (see below), whose sum is σ = 343590724800. Its totient is φ = 100673490624.

The previous prime is 215133034147. The next prime is 215133034199. The reversal of 215133034154 is 451430331512.

It is a super-2 number, since 2×215133034154² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 215133034154.

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, 17668334 + ... + 17680505.

It is an arithmetic number, because the mean of its divisors is an integer number (21474420300).

Almost surely, 2^215133034154 is an apocalyptic number.

215133034154 is a deficient number, since it is larger than the sum of its proper divisors (128457690646).

215133034154 is a wasteful number, since it uses less digits than its factorization.

215133034154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35349037.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 215133034154 its reverse (451430331512), we get a palindrome (666563365666).

The spelling of 215133034154 in words is "two hundred fifteen billion, one hundred thirty-three million, thirty-four thousand, one hundred fifty-four".