211165163461 has 8 divisors (see below), whose sum is σ = 241335039680. Its totient is φ = 180996143328.

The previous prime is 211165163459. The next prime is 211165163467. The reversal of 211165163461 is 164361561112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211165163461 - 2¹ = 211165163459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211165163461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211165163467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453250 + ... + 792316.

It is an arithmetic number, because the mean of its divisors is an integer number (30166879960).

Almost surely, 2^211165163461 is an apocalyptic number.

It is an amenable number.

211165163461 is a deficient number, since it is larger than the sum of its proper divisors (30169876219).

211165163461 is an equidigital number, since it uses as much as digits as its factorization.

211165163461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428043.

The product of its digits is 25920, while the sum is 37.

The spelling of 211165163461 in words is "two hundred eleven billion, one hundred sixty-five million, one hundred sixty-three thousand, four hundred sixty-one".