1660173340 has 24 divisors (see below), whose sum is σ = 3984416352. Its totient is φ = 569202240.

The previous prime is 1660173247. The next prime is 1660173341. The reversal of 1660173340 is 433710661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660173341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5929051 + ... + 5929330.

It is an arithmetic number, because the mean of its divisors is an integer number (166017348).

Almost surely, 2^1660173340 is an apocalyptic number.

1660173340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660173340 is an abundant number, since it is smaller than the sum of its proper divisors (2324243012).

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

1660173340 is a wasteful number, since it uses less digits than its factorization.

1660173340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11858397 (or 11858395 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1660173340 is about 40745.2247508834. The cubic root of 1660173340 is about 1184.0893595434.

The spelling of 1660173340 in words is "one billion, six hundred sixty million, one hundred seventy-three thousand, three hundred forty".