66814948 has 12 divisors (see below), whose sum is σ = 119645680. Its totient is φ = 32630472.

The previous prime is 66814921. The next prime is 66814949. The reversal of 66814948 is 84941866.

It is a super-3 number, since 3×66814948³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66814898 and 66814907.

It is not an unprimeable number, because it can be changed into a prime (66814949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194058 + ... + 194401.

Almost surely, 2^66814948 is an apocalyptic number.

It is an amenable number.

66814948 is a deficient number, since it is larger than the sum of its proper divisors (52830732).

66814948 is a wasteful number, since it uses less digits than its factorization.

66814948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388506 (or 388504 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 66814948 is about 8174.0411058423. The cubic root of 66814948 is about 405.7805361012.

The spelling of 66814948 in words is "sixty-six million, eight hundred fourteen thousand, nine hundred forty-eight".