66354192 has 30 divisors (see below), whose sum is σ = 185699982. Its totient is φ = 22118016.

The previous prime is 66354163. The next prime is 66354193. The reversal of 66354192 is 29145366.

It is a happy number.

66354192 is a `hidden beast` number, since 6 + 635 + 4 + 19 + 2 = 666.

66354192 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 only one way, i.e., 44675856 + 21678336 = 6684^2 + 4656^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66354193) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 230253 + ... + 230540.

Almost surely, 2^66354192 is an apocalyptic number.

It is an amenable number.

66354192 is an abundant number, since it is smaller than the sum of its proper divisors (119345790).

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

66354192 is a wasteful number, since it uses less digits than its factorization.

66354192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460807 (or 460798 counting only the distinct ones).

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

The square root of 66354192 is about 8145.8082471907. The cubic root of 66354192 is about 404.8456293245.

The spelling of 66354192 in words is "sixty-six million, three hundred fifty-four thousand, one hundred ninety-two".