1669207152484 has 81 divisors (see below), whose sum is σ = 3043907603289. Its totient is φ = 800923001760.

The previous prime is 1669207152439. The next prime is 1669207152533. The reversal of 1669207152484 is 4842517029661.

The square root of 1669207152484 is 1291978.

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

It can be written as a sum of positive squares in only one way, i.e., 18393326884 + 1650813825600 = 135622^2 + 1284840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9222138874 + ... + 9222139054.

Almost surely, 2^{1669207152484} is an apocalyptic number.

1669207152484 is the 1291978-th square number.

It is an amenable number.

1669207152484 is a deficient number, since it is larger than the sum of its proper divisors (1374700450805).

1669207152484 is an frugal number, since it uses more digits than its factorization.

1669207152484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 1669207152484 in words is "one trillion, six hundred sixty-nine billion, two hundred seven million, one hundred fifty-two thousand, four hundred eighty-four".