66802148 has 24 divisors (see below), whose sum is σ = 137915904. Its totient is φ = 27705600.

The previous prime is 66802147. The next prime is 66802187. The reversal of 66802148 is 84120866.

It is not an unprimeable number, because it can be changed into a prime (66802147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37613 + ... + 39348.

It is an arithmetic number, because the mean of its divisors is an integer number (5746496).

Almost surely, 2^66802148 is an apocalyptic number.

It is an amenable number.

66802148 is an abundant number, since it is smaller than the sum of its proper divisors (71113756).

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

66802148 is a wasteful number, since it uses less digits than its factorization.

66802148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77003 (or 77001 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 66802148 is about 8173.2581018832. The cubic root of 66802148 is about 405.7546221267.

The spelling of 66802148 in words is "sixty-six million, eight hundred two thousand, one hundred forty-eight".