1666460060 has 48 divisors (see below), whose sum is σ = 3669926400. Its totient is φ = 634765824.

The previous prime is 1666460027. The next prime is 1666460069. The reversal of 1666460060 is 600646661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666460060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666460069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22661 + ... + 62019.

It is an arithmetic number, because the mean of its divisors is an integer number (76456800).

Almost surely, 2^1666460060 is an apocalyptic number.

1666460060 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 1666460060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834963200).

1666460060 is an abundant number, since it is smaller than the sum of its proper divisors (2003466340).

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

1666460060 is a wasteful number, since it uses less digits than its factorization.

1666460060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39470 (or 39468 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1666460060 is about 40822.2985634077. The cubic root of 1666460060 is about 1185.5821076142.

The spelling of 1666460060 in words is "one billion, six hundred sixty-six million, four hundred sixty thousand, sixty".