211166216151 has 16 divisors (see below), whose sum is σ = 307159464960. Its totient is φ = 127975939520.

The previous prime is 211166216141. The next prime is 211166216263. The reversal of 211166216151 is 151612661112.

It is not a de Polignac number, because 211166216151 - 2⁵ = 211166216119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211166216141) 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, 1558330 + ... + 1688408.

It is an arithmetic number, because the mean of its divisors is an integer number (19197466560).

Almost surely, 2^211166216151 is an apocalyptic number.

211166216151 is a deficient number, since it is larger than the sum of its proper divisors (95993248809).

211166216151 is a wasteful number, since it uses less digits than its factorization.

211166216151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179286.

The product of its digits is 4320, while the sum is 33.

Adding to 211166216151 its reverse (151612661112), we get a palindrome (362778877263).

The spelling of 211166216151 in words is "two hundred eleven billion, one hundred sixty-six million, two hundred sixteen thousand, one hundred fifty-one".