169089676109 has 24 divisors (see below), whose sum is σ = 174441329832. Its totient is φ = 163855180800.

The previous prime is 169089676099. The next prime is 169089676117. The reversal of 169089676109 is 901676980961.

It can be written as a sum of positive squares in 12 ways, for example, as 6844252900 + 162245423209 = 82730^2 + 402797^2 .

It is a de Polignac number, because none of the positive numbers 2^k-169089676109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169089676009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163687457 + ... + 163688489.

It is an arithmetic number, because the mean of its divisors is an integer number (7268388743).

Almost surely, 2^169089676109 is an apocalyptic number.

It is an amenable number.

169089676109 is a deficient number, since it is larger than the sum of its proper divisors (5351653723).

169089676109 is a wasteful number, since it uses less digits than its factorization.

169089676109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 62.

The spelling of 169089676109 in words is "one hundred sixty-nine billion, eighty-nine million, six hundred seventy-six thousand, one hundred nine".