83123851108158 has 256 divisors, whose sum is σ = 219576632647680. Its totient is φ = 22816577145600.

The previous prime is 83123851108147. The next prime is 83123851108159. The reversal of 83123851108158 is 85180115832138.

83123851108158 is a `hidden beast` number, since 8 + 3 + 1 + 2 + 385 + 1 + 108 + 158 = 666.

It is a super-2 number, since 2×83123851108158² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83123851108159) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 394799293 + ... + 395009783.

It is an arithmetic number, because the mean of its divisors is an integer number (857721221280).

Almost surely, 2^{83123851108158} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83123851108158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109788316323840).

83123851108158 is an abundant number, since it is smaller than the sum of its proper divisors (136452781539522).

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

83123851108158 is a wasteful number, since it uses less digits than its factorization.

83123851108158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210940 (or 210934 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 54.

The spelling of 83123851108158 in words is "eighty-three trillion, one hundred twenty-three billion, eight hundred fifty-one million, one hundred eight thousand, one hundred fifty-eight".