169535130138 has 240 divisors, whose sum is σ = 449666743680. Its totient is φ = 47527223040.

The previous prime is 169535130133. The next prime is 169535130209. The reversal of 169535130138 is 831031535961.

169535130138 is a `hidden beast` number, since 16 + 95 + 3 + 513 + 0 + 1 + 38 = 666.

169535130138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 169535130093 and 169535130102.

It is not an unprimeable number, because it can be changed into a prime (169535130133) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 19656495 + ... + 19665117.

It is an arithmetic number, because the mean of its divisors is an integer number (1873611432).

Almost surely, 2^169535130138 is an apocalyptic number.

169535130138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 169535130138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224833371840).

169535130138 is an abundant number, since it is smaller than the sum of its proper divisors (280131613542).

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

169535130138 is a wasteful number, since it uses less digits than its factorization.

169535130138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735 (or 8715 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 169535130138 in words is "one hundred sixty-nine billion, five hundred thirty-five million, one hundred thirty thousand, one hundred thirty-eight".