1660804530 has 192 divisors, whose sum is σ = 5090273280. Its totient is φ = 342921600.

The previous prime is 1660804529. The next prime is 1660804543. The reversal of 1660804530 is 354080661.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1660804491 and 1660804500.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4381881 + ... + 4382259.

It is an arithmetic number, because the mean of its divisors is an integer number (26511840).

Almost surely, 2^1660804530 is an apocalyptic number.

1660804530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660804530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2545136640).

1660804530 is an abundant number, since it is smaller than the sum of its proper divisors (3429468750).

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

1660804530 is a wasteful number, since it uses less digits than its factorization.

1660804530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1660804530 is about 40752.9695850499. The cubic root of 1660804530 is about 1184.2394022422.

The spelling of 1660804530 in words is "one billion, six hundred sixty million, eight hundred four thousand, five hundred thirty".