1660144588 has 12 divisors (see below), whose sum is σ = 3076150392. Its totient is φ = 781244480.

The previous prime is 1660144583. The next prime is 1660144597. The reversal of 1660144588 is 8854410661.

It is not an unprimeable number, because it can be changed into a prime (1660144583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12206878 + ... + 12207013.

It is an arithmetic number, because the mean of its divisors is an integer number (256345866).

Almost surely, 2^1660144588 is an apocalyptic number.

It is an amenable number.

1660144588 is a deficient number, since it is larger than the sum of its proper divisors (1416005804).

1660144588 is a wasteful number, since it uses less digits than its factorization.

1660144588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24413912 (or 24413910 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1660144588 is about 40744.8719227340. The cubic root of 1660144588 is about 1184.0825238849.

The spelling of 1660144588 in words is "one billion, six hundred sixty million, one hundred forty-four thousand, five hundred eighty-eight".