1669125005379 has 24 divisors (see below), whose sum is σ = 2680172057472. Its totient is φ = 994019852160.

The previous prime is 1669125005369. The next prime is 1669125005381. The reversal of 1669125005379 is 9735005219661.

1669125005379 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 12 + 500 + 53 + 79 = 666.

It is not a de Polignac number, because 1669125005379 - 2⁴ = 1669125005363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1669125005369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230093562 + ... + 230100815.

It is an arithmetic number, because the mean of its divisors is an integer number (111673835728).

Almost surely, 2^{1669125005379} is an apocalyptic number.

1669125005379 is a deficient number, since it is larger than the sum of its proper divisors (1011047052093).

1669125005379 is a wasteful number, since it uses less digits than its factorization.

1669125005379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460194427 (or 460194424 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 1669125005379 in words is "one trillion, six hundred sixty-nine billion, one hundred twenty-five million, five thousand, three hundred seventy-nine".