169032538493 has 16 divisors (see below), whose sum is σ = 208054982016. Its totient is φ = 133730429760.

The previous prime is 169032538457. The next prime is 169032538501. The reversal of 169032538493 is 394835230961.

It is a cyclic number.

It is not a de Polignac number, because 169032538493 - 2²⁶ = 168965429629 is a prime.

It is a super-2 number, since 2×169032538493² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169032538393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379303 + ... + 1496843.

It is an arithmetic number, because the mean of its divisors is an integer number (13003436376).

Almost surely, 2^169032538493 is an apocalyptic number.

169032538493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

169032538493 is a deficient number, since it is larger than the sum of its proper divisors (39022443523).

169032538493 is a wasteful number, since it uses less digits than its factorization.

169032538493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133364.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 169032538493 in words is "one hundred sixty-nine billion, thirty-two million, five hundred thirty-eight thousand, four hundred ninety-three".