66719094 has 16 divisors (see below), whose sum is σ = 143702832. Its totient is φ = 20528928.

The previous prime is 66719083. The next prime is 66719119. The reversal of 66719094 is 49091766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427609 + ... + 427764.

It is an arithmetic number, because the mean of its divisors is an integer number (8981427).

Almost surely, 2^66719094 is an apocalyptic number.

66719094 is an abundant number, since it is smaller than the sum of its proper divisors (76983738).

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

66719094 is a wasteful number, since it uses less digits than its factorization.

66719094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855391.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 66719094 is about 8168.1756837130. The cubic root of 66719094 is about 405.5863963980.

The spelling of 66719094 in words is "sixty-six million, seven hundred nineteen thousand, ninety-four".