1660290338304 has 1600 divisors, whose sum is σ = 6088935283200. Its totient is φ = 446965972992.

The previous prime is 1660290338263. The next prime is 1660290338321. The reversal of 1660290338304 is 4038330920661.

1660290338304 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 2 + 9 + 0 + 338 + 304 = 666.

It is a super-2 number, since 2×1660290338304² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1660290338304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 57251390962 + ... + 57251390990.

It is an arithmetic number, because the mean of its divisors is an integer number (3805584552).

Almost surely, 2^{1660290338304} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660290338304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044467641600).

1660290338304 is an abundant number, since it is smaller than the sum of its proper divisors (4428644944896).

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

1660290338304 is an frugal number, since it uses more digits than its factorization.

1660290338304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 1660290338304 in words is "one trillion, six hundred sixty billion, two hundred ninety million, three hundred thirty-eight thousand, three hundred four".