1660307980032 has 432 divisors, whose sum is σ = 5745894204960. Its totient is φ = 455504560128.

The previous prime is 1660307980031. The next prime is 1660307980099. The reversal of 1660307980032 is 2300897030661.

1660307980032 is a `hidden beast` number, since 1 + 6 + 603 + 0 + 7 + 9 + 8 + 0 + 0 + 32 = 666.

It is a super-2 number, since 2×1660307980032² (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 1660307980032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660307980031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9588688 + ... + 9760304.

It is an arithmetic number, because the mean of its divisors is an integer number (13300681030).

Almost surely, 2^{1660307980032} is an apocalyptic number.

1660307980032 is a gapful number since it is divisible by the number (12) 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 1660307980032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872947102480).

1660307980032 is an abundant number, since it is smaller than the sum of its proper divisors (4085586224928).

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

1660307980032 is a wasteful number, since it uses less digits than its factorization.

1660307980032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171688 (or 171671 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 1660307980032 in words is "one trillion, six hundred sixty billion, three hundred seven million, nine hundred eighty thousand, thirty-two".