1666292463360 has 1440 divisors, whose sum is σ = 7073653466880. Its totient is φ = 371212886016.

The previous prime is 1666292463349. The next prime is 1666292463371. The reversal of 1666292463360 is 633642926661.

It is an interprime number because it is at equal distance from previous prime (1666292463349) and next prime (1666292463371).

It is a tau number, because it is divible by the number of its divisors (1440).

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 = 1666292463297 and 1666292463306.

It is a congruent number.

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 159 ways as a sum of consecutive naturals, for example, 3568077847 + ... + 3568078313.

It is an arithmetic number, because the mean of its divisors is an integer number (4912259352).

Almost surely, 2^{1666292463360} is an apocalyptic number.

1666292463360 is a gapful number since it is divisible by the number (10) 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 1666292463360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3536826733440).

1666292463360 is an abundant number, since it is smaller than the sum of its proper divisors (5407361003520).

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

1666292463360 is an frugal number, since it uses more digits than its factorization.

1666292463360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 54.

The spelling of 1666292463360 in words is "one trillion, six hundred sixty-six billion, two hundred ninety-two million, four hundred sixty-three thousand, three hundred sixty".