66654948 has 48 divisors (see below), whose sum is σ = 158760000. Its totient is φ = 21762048.

The previous prime is 66654947. The next prime is 66654953. The reversal of 66654948 is 84945666.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66654897 and 66654906.

It is not an unprimeable number, because it can be changed into a prime (66654941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148228 + ... + 148676.

It is an arithmetic number, because the mean of its divisors is an integer number (3307500).

Almost surely, 2^66654948 is an apocalyptic number.

It is an amenable number.

66654948 is an abundant number, since it is smaller than the sum of its proper divisors (92105052).

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

66654948 is a wasteful number, since it uses less digits than its factorization.

66654948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 682 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 66654948 is about 8164.2481588938. The cubic root of 66654948 is about 405.4563732134.

The spelling of 66654948 in words is "sixty-six million, six hundred fifty-four thousand, nine hundred forty-eight".