1660499058 has 8 divisors (see below), whose sum is σ = 3320998128. Its totient is φ = 553499684.

The previous prime is 1660499041. The next prime is 1660499119. The reversal of 1660499058 is 8509940661.

1660499058 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1660499058 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1660498998 and 1660499016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138374916 + ... + 138374927.

It is an arithmetic number, because the mean of its divisors is an integer number (415124766).

Almost surely, 2^1660499058 is an apocalyptic number.

1660499058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1660499058 is a wasteful number, since it uses less digits than its factorization.

1660499058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276749848.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 1660499058 is about 40749.2215631170. The cubic root of 1660499058 is about 1184.1667920196.

The spelling of 1660499058 in words is "one billion, six hundred sixty million, four hundred ninety-nine thousand, fifty-eight".