66357122 has 8 divisors (see below), whose sum is σ = 107192316. Its totient is φ = 30626352.

The previous prime is 66357107. The next prime is 66357131. The reversal of 66357122 is 22175366.

66357122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56987401 + 9369721 = 7549^2 + 3061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1276073 + ... + 1276124.

Almost surely, 2^66357122 is an apocalyptic number.

66357122 is a deficient number, since it is larger than the sum of its proper divisors (40835194).

66357122 is a wasteful number, since it uses less digits than its factorization.

66357122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552212.

The product of its digits is 15120, while the sum is 32.

The square root of 66357122 is about 8145.9880923065. The cubic root of 66357122 is about 404.8515881554.

The spelling of 66357122 in words is "sixty-six million, three hundred fifty-seven thousand, one hundred twenty-two".