66476460 has 48 divisors (see below), whose sum is σ = 197086176. Its totient is φ = 16684032.

The previous prime is 66476441. The next prime is 66476467. The reversal of 66476460 is 6467466.

It is not an unprimeable number, because it can be changed into a prime (66476467) 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, 31567 + ... + 33606.

It is an arithmetic number, because the mean of its divisors is an integer number (4105962).

Almost surely, 2^66476460 is an apocalyptic number.

66476460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66476460 is an abundant number, since it is smaller than the sum of its proper divisors (130609716).

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

66476460 is a wasteful number, since it uses less digits than its factorization.

66476460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65202 (or 65200 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 66476460 is about 8153.3097573930. The cubic root of 66476460 is about 405.0941405909.

The spelling of 66476460 in words is "sixty-six million, four hundred seventy-six thousand, four hundred sixty".