1660816596000 has 384 divisors, whose sum is σ = 5511037948416. Its totient is φ = 437202124800.

The previous prime is 1660816595987. The next prime is 1660816596007. The reversal of 1660816596000 is 6956180661.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1660816596007) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 356625672 + ... + 356630328.

It is an arithmetic number, because the mean of its divisors is an integer number (14351661324).

Almost surely, 2^{1660816596000} is an apocalyptic number.

1660816596000 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 1660816596000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755518974208).

1660816596000 is an abundant number, since it is smaller than the sum of its proper divisors (3850221352416).

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

1660816596000 is a wasteful number, since it uses less digits than its factorization.

1660816596000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061 (or 5043 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 1660816596000 in words is "one trillion, six hundred sixty billion, eight hundred sixteen million, five hundred ninety-six thousand".