169944464013 has 16 divisors (see below), whose sum is σ = 233790347520. Its totient is φ = 109751563584.

The previous prime is 169944463963. The next prime is 169944464021. The reversal of 169944464013 is 310464449961.

It is not a de Polignac number, because 169944464013 - 2⁹ = 169944463501 is a prime.

It is a super-2 number, since 2×169944464013² (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 (169944464023) 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, 6752206 + ... + 6777327.

It is an arithmetic number, because the mean of its divisors is an integer number (14611896720).

Almost surely, 2^169944464013 is an apocalyptic number.

It is an amenable number.

169944464013 is a deficient number, since it is larger than the sum of its proper divisors (63845883507).

169944464013 is a wasteful number, since it uses less digits than its factorization.

169944464013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13529668.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 169944464013 in words is "one hundred sixty-nine billion, nine hundred forty-four million, four hundred sixty-four thousand, thirteen".