1150001660 has 24 divisors (see below), whose sum is σ = 2420925360. Its totient is φ = 458872704.

The previous prime is 1150001659. The next prime is 1150001689. The reversal of 1150001660 is 661000511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 62114 + ... + 78473.

It is an arithmetic number, because the mean of its divisors is an integer number (100871890).

Almost surely, 2^1150001660 is an apocalyptic number.

1150001660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150001660 is an abundant number, since it is smaller than the sum of its proper divisors (1270923700).

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

1150001660 is a wasteful number, since it uses less digits than its factorization.

1150001660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141005 (or 141003 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1150001660 is about 33911.6743909822. The cubic root of 1150001660 is about 1047.6900572771.

The spelling of 1150001660 in words is "one billion, one hundred fifty million, one thousand, six hundred sixty".