169744221040 has 40 divisors (see below), whose sum is σ = 397304035200. Its totient is φ = 67441994496.

The previous prime is 169744221001. The next prime is 169744221061. The reversal of 169744221040 is 40122447961.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 169744220984 and 169744221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7108224 + ... + 7132063.

It is an arithmetic number, because the mean of its divisors is an integer number (9932600880).

Almost surely, 2^169744221040 is an apocalyptic number.

169744221040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169744221040 is an abundant number, since it is smaller than the sum of its proper divisors (227559814160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169744221040 is a wasteful number, since it uses less digits than its factorization.

169744221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240449 (or 14240443 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 169744221040 in words is "one hundred sixty-nine billion, seven hundred forty-four million, two hundred twenty-one thousand, forty".