1660408086 has 16 divisors (see below), whose sum is σ = 3321259200. Its totient is φ = 553395528.

The previous prime is 1660408069. The next prime is 1660408091. The reversal of 1660408086 is 6808040661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49525 + ... + 75983.

It is an arithmetic number, because the mean of its divisors is an integer number (207578700).

Almost surely, 2^1660408086 is an apocalyptic number.

1660408086 is an abundant number, since it is smaller than the sum of its proper divisors (1660851114).

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

1660408086 is a wasteful number, since it uses less digits than its factorization.

1660408086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36923.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1660408086 is about 40748.1053056458. The cubic root of 1660408086 is about 1184.1451663948.

The spelling of 1660408086 in words is "one billion, six hundred sixty million, four hundred eight thousand, eighty-six".