1966606086 has 32 divisors (see below), whose sum is σ = 4062947328. Its totient is φ = 633942720.

The previous prime is 1966606073. The next prime is 1966606127. The reversal of 1966606086 is 6806066691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353055 + ... + 358581.

It is an arithmetic number, because the mean of its divisors is an integer number (126967104).

Almost surely, 2^1966606086 is an apocalyptic number.

1966606086 is an abundant number, since it is smaller than the sum of its proper divisors (2096341242).

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

1966606086 is a wasteful number, since it uses less digits than its factorization.

1966606086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 1966606086 is about 44346.4326186448. The cubic root of 1966606086 is about 1252.8693733308.

The spelling of 1966606086 in words is "one billion, nine hundred sixty-six million, six hundred six thousand, eighty-six".