66460404 has 48 divisors (see below), whose sum is σ = 168519680. Its totient is φ = 20308320.

The previous prime is 66460393. The next prime is 66460411. The reversal of 66460404 is 40406466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2367 + ... + 11769.

Almost surely, 2^66460404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66460404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84259840).

66460404 is an abundant number, since it is smaller than the sum of its proper divisors (102059276).

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

66460404 is a wasteful number, since it uses less digits than its factorization.

66460404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460 (or 9458 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 66460404 is about 8152.3250671204. The cubic root of 66460404 is about 405.0615239562.

The spelling of 66460404 in words is "sixty-six million, four hundred sixty thousand, four hundred four".