66741468 has 24 divisors (see below), whose sum is σ = 156870672. Its totient is φ = 22084224.

The previous prime is 66741413. The next prime is 66741511. The reversal of 66741468 is 86414766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18655 + ... + 21942.

It is an arithmetic number, because the mean of its divisors is an integer number (6536278).

Almost surely, 2^66741468 is an apocalyptic number.

It is an amenable number.

66741468 is an abundant number, since it is smaller than the sum of its proper divisors (90129204).

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

66741468 is a wasteful number, since it uses less digits than its factorization.

66741468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40741 (or 40739 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 66741468 is about 8169.5451525773. The cubic root of 66741468 is about 405.6317286276.

The spelling of 66741468 in words is "sixty-six million, seven hundred forty-one thousand, four hundred sixty-eight".