1669655493324 has 288 divisors, whose sum is σ = 5425806597120. Its totient is φ = 421033987584.

The previous prime is 1669655493293. The next prime is 1669655493349. The reversal of 1669655493324 is 4233945569661.

1669655493324 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 65 + 549 + 3 + 3 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9700099 + ... + 9870725.

It is an arithmetic number, because the mean of its divisors is an integer number (18839606240).

Almost surely, 2^{1669655493324} is an apocalyptic number.

1669655493324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669655493324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2712903298560).

1669655493324 is an abundant number, since it is smaller than the sum of its proper divisors (3756151103796).

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

1669655493324 is a wasteful number, since it uses less digits than its factorization.

1669655493324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170789 (or 170784 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 63.

The spelling of 1669655493324 in words is "one trillion, six hundred sixty-nine billion, six hundred fifty-five million, four hundred ninety-three thousand, three hundred twenty-four".