66954006 has 32 divisors (see below), whose sum is σ = 170042880. Its totient is φ = 19129608.

The previous prime is 66953993. The next prime is 66954029. The reversal of 66954006 is 60045966.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88186 + ... + 88941.

It is an arithmetic number, because the mean of its divisors is an integer number (5313840).

Almost surely, 2^66954006 is an apocalyptic number.

66954006 is an abundant number, since it is smaller than the sum of its proper divisors (103088874).

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

66954006 is a wasteful number, since it uses less digits than its factorization.

66954006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177145 (or 177139 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 66954006 is about 8182.5427588250. The cubic root of 66954006 is about 406.0618500416.

It can be divided in two parts, 6695 and 4006, that added together give a palindrome (10701).

The spelling of 66954006 in words is "sixty-six million, nine hundred fifty-four thousand, six".