66698148 has 48 divisors (see below), whose sum is σ = 170311680. Its totient is φ = 20148000.

The previous prime is 66698141. The next prime is 66698167. The reversal of 66698148 is 84189666.

It is a junction number, because it is equal to n+sod(n) for n = 66698097 and 66698106.

It is not an unprimeable number, because it can be changed into a prime (66698141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57373 + ... + 58523.

It is an arithmetic number, because the mean of its divisors is an integer number (3548160).

Almost surely, 2^66698148 is an apocalyptic number.

It is an amenable number.

66698148 is an abundant number, since it is smaller than the sum of its proper divisors (103613532).

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

66698148 is a wasteful number, since it uses less digits than its factorization.

66698148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1606 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 66698148 is about 8166.8934118182. The cubic root of 66698148 is about 405.5439482705.

The spelling of 66698148 in words is "sixty-six million, six hundred ninety-eight thousand, one hundred forty-eight".