669192194160 has 320 divisors, whose sum is σ = 2654397250560. Its totient is φ = 151790146560.

The previous prime is 669192194149. The next prime is 669192194171. The reversal of 669192194160 is 61491291966.

669192194160 is a `hidden beast` number, since 6 + 6 + 9 + 1 + 9 + 219 + 416 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (669192194149) and next prime (669192194171).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 669192194097 and 669192194106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1811794 + ... + 2149646.

It is an arithmetic number, because the mean of its divisors is an integer number (8294991408).

Almost surely, 2^669192194160 is an apocalyptic number.

669192194160 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 669192194160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327198625280).

669192194160 is an abundant number, since it is smaller than the sum of its proper divisors (1985205056400).

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

669192194160 is a wasteful number, since it uses less digits than its factorization.

669192194160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338013 (or 338001 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 669192194160 in words is "six hundred sixty-nine billion, one hundred ninety-two million, one hundred ninety-four thousand, one hundred sixty".