1660016422160 has 80 divisors (see below), whose sum is σ = 3898295908272. Its totient is φ = 657340416000.

The previous prime is 1660016422151. The next prime is 1660016422171. The reversal of 1660016422160 is 612246100661.

It can be written as a sum of positive squares in 8 ways, for example, as 256862457856 + 1403153964304 = 506816^2 + 1184548^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1660016422160.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110534972 + ... + 110549988.

Almost surely, 2^{1660016422160} is an apocalyptic number.

1660016422160 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 1660016422160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949147954136).

1660016422160 is an abundant number, since it is smaller than the sum of its proper divisors (2238279486112).

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

1660016422160 is a wasteful number, since it uses less digits than its factorization.

1660016422160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28812 (or 28806 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 1660016422160 in words is "one trillion, six hundred sixty billion, sixteen million, four hundred twenty-two thousand, one hundred sixty".