66084054 has 16 divisors (see below), whose sum is σ = 132247920. Its totient is φ = 22014720.

The previous prime is 66084047. The next prime is 66084059. The reversal of 66084054 is 45048066.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66084059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16962 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (8265495).

Almost surely, 2^66084054 is an apocalyptic number.

66084054 is an abundant number, since it is smaller than the sum of its proper divisors (66163866).

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

66084054 is a wasteful number, since it uses less digits than its factorization.

66084054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 66084054 is about 8129.2099247098. The cubic root of 66084054 is about 404.2954860472.

The spelling of 66084054 in words is "sixty-six million, eighty-four thousand, fifty-four".