1684685552160 has 768 divisors, whose sum is σ = 6371696701440. Its totient is φ = 370135941120.

The previous prime is 1684685552117. The next prime is 1684685552171. The reversal of 1684685552160 is 612555864861.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 1684685552160.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 182696350 + ... + 182705570.

It is an arithmetic number, because the mean of its divisors is an integer number (8296480080).

Almost surely, 2^{1684685552160} is an apocalyptic number.

1684685552160 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 1684685552160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3185848350720).

1684685552160 is an abundant number, since it is smaller than the sum of its proper divisors (4687011149280).

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

1684685552160 is a wasteful number, since it uses less digits than its factorization.

1684685552160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361 (or 9353 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 1684685552160 in words is "one trillion, six hundred eighty-four billion, six hundred eighty-five million, five hundred fifty-two thousand, one hundred sixty".