66162428 has 12 divisors (see below), whose sum is σ = 116696832. Its totient is φ = 32820480.

The previous prime is 66162403. The next prime is 66162443. The reversal of 66162428 is 82426166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64613 + ... + 65628.

It is an arithmetic number, because the mean of its divisors is an integer number (9724736).

Almost surely, 2^66162428 is an apocalyptic number.

It is an amenable number.

66162428 is a deficient number, since it is larger than the sum of its proper divisors (50534404).

66162428 is a wasteful number, since it uses less digits than its factorization.

66162428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130372 (or 130370 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 66162428 is about 8134.0290139635. The cubic root of 66162428 is about 404.4552509446.

The spelling of 66162428 in words is "sixty-six million, one hundred sixty-two thousand, four hundred twenty-eight".