66046460 has 24 divisors (see below), whose sum is σ = 138862080. Its totient is φ = 26387264.

The previous prime is 66046457. The next prime is 66046481. The reversal of 66046460 is 6464066.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23237 + ... + 25923.

It is an arithmetic number, because the mean of its divisors is an integer number (5785920).

Almost surely, 2^66046460 is an apocalyptic number.

It is an amenable number.

66046460 is an abundant number, since it is smaller than the sum of its proper divisors (72815620).

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

66046460 is a wasteful number, since it uses less digits than its factorization.

66046460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66046460 is about 8126.8973169347. The cubic root of 66046460 is about 404.2188060886.

The spelling of 66046460 in words is "sixty-six million, forty-six thousand, four hundred sixty".