1669517241604 has 27 divisors (see below), whose sum is σ = 2945420483943. Its totient is φ = 828022913928.

The previous prime is 1669517241529. The next prime is 1669517241641. The reversal of 1669517241604 is 4061427159661.

It is a happy number.

The square root of 1669517241604 is 1292098.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 328190349 + ... + 328195435.

Almost surely, 2^{1669517241604} is an apocalyptic number.

1669517241604 is the 1292098-th square number.

It is an amenable number.

1669517241604 is a deficient number, since it is larger than the sum of its proper divisors (1275903242339).

1669517241604 is an frugal number, since it uses more digits than its factorization.

1669517241604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 1669517241604 in words is "one trillion, six hundred sixty-nine billion, five hundred seventeen million, two hundred forty-one thousand, six hundred four".