169004408949999 has 12 divisors (see below), whose sum is σ = 278991405250896. Its totient is φ = 96573947971392.

The previous prime is 169004408949983. The next prime is 169004408950049. The reversal of 169004408949999 is 999949804400961.

It is a happy number.

169004408949999 is a `hidden beast` number, since 1 + 6 + 9 + 0 + 0 + 4 + 40 + 89 + 499 + 9 + 9 = 666.

It is not a de Polignac number, because 169004408949999 - 2⁴ = 169004408949983 is a prime.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169004408949199) 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, 1341304832874 + ... + 1341304832999.

It is an arithmetic number, because the mean of its divisors is an integer number (23249283770908).

Almost surely, 2^{169004408949999} is an apocalyptic number.

169004408949999 is a deficient number, since it is larger than the sum of its proper divisors (109986996300897).

169004408949999 is a wasteful number, since it uses less digits than its factorization.

169004408949999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682609665886 (or 2682609665883 counting only the distinct ones).

The product of its (nonzero) digits is 1632586752, while the sum is 81.

The spelling of 169004408949999 in words is "one hundred sixty-nine trillion, four billion, four hundred eight million, nine hundred forty-nine thousand, nine hundred ninety-nine".