66148680 has 64 divisors (see below), whose sum is σ = 213716160. Its totient is φ = 16282368.

The previous prime is 66148673. The next prime is 66148697. The reversal of 66148680 is 8684166.

66148680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19642 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (3339315).

Almost surely, 2^66148680 is an apocalyptic number.

66148680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66148680 is an abundant number, since it is smaller than the sum of its proper divisors (147567480).

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

66148680 is a wasteful number, since it uses less digits than its factorization.

66148680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42430 (or 42426 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 66148680 is about 8133.1838784083. The cubic root of 66148680 is about 404.4272348628.

The spelling of 66148680 in words is "sixty-six million, one hundred forty-eight thousand, six hundred eighty".