1665415160 has 32 divisors (see below), whose sum is σ = 3757263840. Its totient is φ = 664374144.

The previous prime is 1665415153. The next prime is 1665415187. The reversal of 1665415160 is 615145661.

It is a self number, because there is not a number n which added to its sum of digits gives 1665415160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40892 + ... + 70731.

It is an arithmetic number, because the mean of its divisors is an integer number (117414495).

Almost surely, 2^1665415160 is an apocalyptic number.

1665415160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1665415160 is an abundant number, since it is smaller than the sum of its proper divisors (2091848680).

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

1665415160 is a wasteful number, since it uses less digits than its factorization.

1665415160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112007 (or 112003 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1665415160 is about 40809.4984041706. The cubic root of 1665415160 is about 1185.3342621395.

The spelling of 1665415160 in words is "one billion, six hundred sixty-five million, four hundred fifteen thousand, one hundred sixty".