169434193536 has 96 divisors (see below), whose sum is σ = 500742087300. Its totient is φ = 54951616512.

The previous prime is 169434193531. The next prime is 169434193543. The reversal of 169434193536 is 635391434961.

It is a happy number.

169434193536 is a `hidden beast` number, since 1 + 6 + 94 + 3 + 4 + 19 + 3 + 536 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 165779265600 + 3654927936 = 407160^2 + 60456^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (169434193531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1944921 + ... + 2030168.

Almost surely, 2^169434193536 is an apocalyptic number.

169434193536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

169434193536 is an abundant number, since it is smaller than the sum of its proper divisors (331307893764).

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

169434193536 is a wasteful number, since it uses less digits than its factorization.

169434193536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975146 (or 3975131 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The spelling of 169434193536 in words is "one hundred sixty-nine billion, four hundred thirty-four million, one hundred ninety-three thousand, five hundred thirty-six".