158218155100 has 72 divisors (see below), whose sum is σ = 363610946160. Its totient is φ = 59551134720.

The previous prime is 158218155041. The next prime is 158218155107. The reversal of 158218155100 is 1551812851.

It is a self number, because there is not a number n which added to its sum of digits gives 158218155100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158218155107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10990107 + ... + 11004493.

It is an arithmetic number, because the mean of its divisors is an integer number (5050152030).

Almost surely, 2^158218155100 is an apocalyptic number.

158218155100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158218155100 is an abundant number, since it is smaller than the sum of its proper divisors (205392791060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158218155100 is a wasteful number, since it uses less digits than its factorization.

158218155100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20887 (or 20880 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 37.

Adding to 158218155100 its reverse (1551812851), we get a palindrome (159769967951).

The spelling of 158218155100 in words is "one hundred fifty-eight billion, two hundred eighteen million, one hundred fifty-five thousand, one hundred".