66266958 has 16 divisors (see below), whose sum is σ = 133302096. Its totient is φ = 21960960.

The previous prime is 66266957. The next prime is 66267049. The reversal of 66266958 is 85966266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66266957) 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, 30883 + ... + 32958.

It is an arithmetic number, because the mean of its divisors is an integer number (8331381).

Almost surely, 2^66266958 is an apocalyptic number.

66266958 is an abundant number, since it is smaller than the sum of its proper divisors (67035138).

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

66266958 is a wasteful number, since it uses less digits than its factorization.

66266958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64019.

The product of its digits is 933120, while the sum is 48.

The square root of 66266958 is about 8140.4519530552. The cubic root of 66266958 is about 404.6681384465.

The spelling of 66266958 in words is "sixty-six million, two hundred sixty-six thousand, nine hundred fifty-eight".