669467224558080 has 3840 divisors, whose sum is σ = 2808736339368960. Its totient is φ = 151504910548992.

The previous prime is 669467224558009. The next prime is 669467224558141. The reversal of 669467224558080 is 80855422764966.

669467224558080 is a `hidden beast` number, since 6 + 6 + 9 + 4 + 67 + 2 + 2 + 4 + 558 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3840).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 612504322014 + ... + 612504323106.

It is an arithmetic number, because the mean of its divisors is an integer number (731441755044).

Almost surely, 2^{669467224558080} is an apocalyptic number.

669467224558080 is a gapful number since it is divisible by the number (60) 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 669467224558080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404368169684480).

669467224558080 is an abundant number, since it is smaller than the sum of its proper divisors (2139269114810880).

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

669467224558080 is a wasteful number, since it uses less digits than its factorization.

669467224558080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 1393459200, while the sum is 72.

The spelling of 669467224558080 in words is "six hundred sixty-nine trillion, four hundred sixty-seven billion, two hundred twenty-four million, five hundred fifty-eight thousand, eighty".