158216111 has 8 divisors (see below), whose sum is σ = 161111040. Its totient is φ = 155328408.

The previous prime is 158216099. The next prime is 158216117. The reversal of 158216111 is 111612851.

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

It is a cyclic number.

It is not a de Polignac number, because 158216111 - 2¹⁰ = 158215087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158216117) 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, 62900 + ... + 65366.

It is an arithmetic number, because the mean of its divisors is an integer number (20138880).

Almost surely, 2^158216111 is an apocalyptic number.

158216111 is a deficient number, since it is larger than the sum of its proper divisors (2894929).

158216111 is a wasteful number, since it uses less digits than its factorization.

158216111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613.

The product of its digits is 480, while the sum is 26.

The square root of 158216111 is about 12578.3985864656. The cubic root of 158216111 is about 540.8583867244.

Adding to 158216111 its reverse (111612851), we get a palindrome (269828962).

The spelling of 158216111 in words is "one hundred fifty-eight million, two hundred sixteen thousand, one hundred eleven".