66946948 has 6 divisors (see below), whose sum is σ = 117157166. Its totient is φ = 33473472.

The previous prime is 66946931. The next prime is 66946961. The reversal of 66946948 is 84964966.

It can be written as a sum of positive squares in only one way, i.e., 56070144 + 10876804 = 7488^2 + 3298^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66946895 and 66946904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8368365 + ... + 8368372.

Almost surely, 2^66946948 is an apocalyptic number.

It is an amenable number.

66946948 is a deficient number, since it is larger than the sum of its proper divisors (50210218).

66946948 is a wasteful number, since it uses less digits than its factorization.

66946948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16736741 (or 16736739 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 66946948 is about 8182.1114634305. Note that the first 3 decimals coincide. The cubic root of 66946948 is about 406.0475811157.

The spelling of 66946948 in words is "sixty-six million, nine hundred forty-six thousand, nine hundred forty-eight".