1660000557460 has 48 divisors (see below), whose sum is σ = 4019258025216. Its totient is φ = 564106378752.

The previous prime is 1660000557451. The next prime is 1660000557503. The reversal of 1660000557460 is 647550000661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52449432 + ... + 52481071.

It is an arithmetic number, because the mean of its divisors is an integer number (83734542192).

Almost surely, 2^{1660000557460} is an apocalyptic number.

1660000557460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660000557460 is an abundant number, since it is smaller than the sum of its proper divisors (2359257467756).

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

1660000557460 is a wasteful number, since it uses less digits than its factorization.

1660000557460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104930632 (or 104930630 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 1660000557460 in words is "one trillion, six hundred sixty billion, five hundred fifty-seven thousand, four hundred sixty".