66748148 has 24 divisors (see below), whose sum is σ = 120325632. Its totient is φ = 32374944.

The previous prime is 66748141. The next prime is 66748151. The reversal of 66748148 is 84184766.

It is a super-2 number, since 2×66748148² = 8910630522859808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66748099 and 66748108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66748141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89465 + ... + 90207.

It is an arithmetic number, because the mean of its divisors is an integer number (5013568).

Almost surely, 2^66748148 is an apocalyptic number.

It is an amenable number.

66748148 is a deficient number, since it is larger than the sum of its proper divisors (53577484).

66748148 is a wasteful number, since it uses less digits than its factorization.

66748148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 66748148 is about 8169.9539778386. The cubic root of 66748148 is about 405.6452610916.

The spelling of 66748148 in words is "sixty-six million, seven hundred forty-eight thousand, one hundred forty-eight".