215235011164611 has 12 divisors (see below), whose sum is σ = 304854202665752. Its totient is φ = 135049418769408.

The previous prime is 215235011164541. The next prime is 215235011164643. The reversal of 215235011164611 is 116461110532512.

It is not a de Polignac number, because 215235011164611 - 2¹⁵ = 215235011131843 is a prime.

It is a super-2 number, since 2×215235011164611² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215235011164611.

It is not an unprimeable number, because it can be changed into a prime (215235011164661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124126303150 + ... + 124126304883.

Almost surely, 2^{215235011164611} is an apocalyptic number.

215235011164611 is a deficient number, since it is larger than the sum of its proper divisors (89619191501141).

215235011164611 is a wasteful number, since it uses less digits than its factorization.

215235011164611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248252608070 (or 248252608053 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 215235011164611 in words is "two hundred fifteen trillion, two hundred thirty-five billion, eleven million, one hundred sixty-four thousand, six hundred eleven".