66471044 has 12 divisors (see below), whose sum is σ = 122446800. Its totient is φ = 31486248.

The previous prime is 66471023. The next prime is 66471061. The reversal of 66471044 is 44017466.

It is a self number, because there is not a number n which added to its sum of digits gives 66471044.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437234 + ... + 437385.

It is an arithmetic number, because the mean of its divisors is an integer number (10203900).

Almost surely, 2^66471044 is an apocalyptic number.

It is an amenable number.

66471044 is a deficient number, since it is larger than the sum of its proper divisors (55975756).

66471044 is a wasteful number, since it uses less digits than its factorization.

66471044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874642 (or 874640 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 66471044 is about 8152.9776155709. The cubic root of 66471044 is about 405.0831389549.

The spelling of 66471044 in words is "sixty-six million, four hundred seventy-one thousand, forty-four".