169006890628 has 6 divisors (see below), whose sum is σ = 295762058606. Its totient is φ = 84503445312.

The previous prime is 169006890607. The next prime is 169006890641. The reversal of 169006890628 is 826098600961.

169006890628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 158971258944 + 10035631684 = 398712^2 + 100178^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21125861325 + ... + 21125861332.

Almost surely, 2^169006890628 is an apocalyptic number.

It is an amenable number.

169006890628 is a deficient number, since it is larger than the sum of its proper divisors (126755167978).

169006890628 is a wasteful number, since it uses less digits than its factorization.

169006890628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42251722661 (or 42251722659 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 169006890628 in words is "one hundred sixty-nine billion, six million, eight hundred ninety thousand, six hundred twenty-eight".