169412913604 has 81 divisors (see below), whose sum is σ = 333083003239. Its totient is φ = 75338897920.

The previous prime is 169412913601. The next prime is 169412913613. The reversal of 169412913604 is 406319214961.

The square root of 169412913604 is 411598.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3046819204 + 166366094400 = 55198^2 + 407880^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169412913601) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 479923092 + ... + 479923444.

Almost surely, 2^169412913604 is an apocalyptic number.

169412913604 is the 411598-th square number.

It is an amenable number.

169412913604 is a deficient number, since it is larger than the sum of its proper divisors (163670089635).

169412913604 is an equidigital number, since it uses as much as digits as its factorization.

169412913604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 169412913604 in words is "one hundred sixty-nine billion, four hundred twelve million, nine hundred thirteen thousand, six hundred four".