1660875216 has 240 divisors, whose sum is σ = 5794629120. Its totient is φ = 398062080.

The previous prime is 1660875187. The next prime is 1660875217. The reversal of 1660875216 is 6125780661.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660875217) 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, 623295 + ... + 625953.

It is an arithmetic number, because the mean of its divisors is an integer number (24144288).

Almost surely, 2^1660875216 is an apocalyptic number.

1660875216 is a gapful number since it is divisible by the number (16) 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 1660875216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897314560).

1660875216 is an abundant number, since it is smaller than the sum of its proper divisors (4133753904).

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

1660875216 is a wasteful number, since it uses less digits than its factorization.

1660875216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1660875216 is about 40753.8368255064. The cubic root of 1660875216 is about 1184.2562029267.

The spelling of 1660875216 in words is "one billion, six hundred sixty million, eight hundred seventy-five thousand, two hundred sixteen".