169340386397 has 24 divisors (see below), whose sum is σ = 212166727416. Its totient is φ = 133967167488.

The previous prime is 169340386393. The next prime is 169340386399. The reversal of 169340386397 is 793683043961.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25300401721 + 144039984676 = 159061^2 + 379526^2 .

It is not a de Polignac number, because 169340386397 - 2² = 169340386393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169340386393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10306733 + ... + 10323149.

It is an arithmetic number, because the mean of its divisors is an integer number (8840280309).

Almost surely, 2^169340386397 is an apocalyptic number.

It is an amenable number.

169340386397 is a deficient number, since it is larger than the sum of its proper divisors (42826341019).

169340386397 is a wasteful number, since it uses less digits than its factorization.

169340386397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32637 (or 32630 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 59.

The spelling of 169340386397 in words is "one hundred sixty-nine billion, three hundred forty million, three hundred eighty-six thousand, three hundred ninety-seven".