66148072 has 16 divisors (see below), whose sum is σ = 128304900. Its totient is φ = 31933440.

The previous prime is 66148009. The next prime is 66148091. The reversal of 66148072 is 27084166.

It can be written as a sum of positive squares in 2 ways, for example, as 61246276 + 4901796 = 7826^2 + 2214^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142329 + ... + 142792.

Almost surely, 2^66148072 is an apocalyptic number.

It is an amenable number.

66148072 is a deficient number, since it is larger than the sum of its proper divisors (62156828).

66148072 is a wasteful number, since it uses less digits than its factorization.

66148072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285156 (or 285152 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 66148072 is about 8133.1465005864. The cubic root of 66148072 is about 404.4259957728.

The spelling of 66148072 in words is "sixty-six million, one hundred forty-eight thousand, seventy-two".