1668762160 has 160 divisors (see below), whose sum is σ = 4545459072. Its totient is φ = 564019200.

The previous prime is 1668762157. The next prime is 1668762163. The reversal of 1668762160 is 612678661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1668762157) and next prime (1668762163).

It is not an unprimeable number, because it can be changed into a prime (1668762163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652885 + ... + 655435.

Almost surely, 2^1668762160 is an apocalyptic number.

1668762160 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 1668762160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2272729536).

1668762160 is an abundant number, since it is smaller than the sum of its proper divisors (2876696912).

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

1668762160 is a wasteful number, since it uses less digits than its factorization.

1668762160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1668762160 is about 40850.4854316323. The cubic root of 1668762160 is about 1186.1277898072.

The spelling of 1668762160 in words is "one billion, six hundred sixty-eight million, seven hundred sixty-two thousand, one hundred sixty".