66277922 has 4 divisors (see below), whose sum is σ = 99416886. Its totient is φ = 33138960.

The previous prime is 66277901. The next prime is 66277933. The reversal of 66277922 is 22977266.

It is a happy number.

66277922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52432081 + 13845841 = 7241^2 + 3721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66277922.

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 as a sum of consecutive naturals, namely, 16569479 + ... + 16569482.

Almost surely, 2^66277922 is an apocalyptic number.

66277922 is a deficient number, since it is larger than the sum of its proper divisors (33138964).

66277922 is a wasteful number, since it uses less digits than its factorization.

66277922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33138963.

The product of its digits is 127008, while the sum is 41.

The square root of 66277922 is about 8141.1253521857. The cubic root of 66277922 is about 404.6904549319.

The spelling of 66277922 in words is "sixty-six million, two hundred seventy-seven thousand, nine hundred twenty-two".