66575748 has 24 divisors (see below), whose sum is σ = 155725920. Its totient is φ = 22137280.

The previous prime is 66575737. The next prime is 66575807. The reversal of 66575748 is 84757566.

It is a junction number, because it is equal to n+sod(n) for n = 66575697 and 66575706.

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 7 ways as a sum of consecutive naturals, for example, 1593 + ... + 11648.

It is an arithmetic number, because the mean of its divisors is an integer number (6488580).

Almost surely, 2^66575748 is an apocalyptic number.

It is an amenable number.

66575748 is an abundant number, since it is smaller than the sum of its proper divisors (89150172).

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

66575748 is a wasteful number, since it uses less digits than its factorization.

66575748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13667 (or 13665 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 66575748 is about 8159.3963011978. The cubic root of 66575748 is about 405.2957206149.

The spelling of 66575748 in words is "sixty-six million, five hundred seventy-five thousand, seven hundred forty-eight".