66701044 has 12 divisors (see below), whose sum is σ = 120752100. Its totient is φ = 32200448.

The previous prime is 66701027. The next prime is 66701051. The reversal of 66701044 is 44010766.

It can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 45724644 = 4580^2 + 6762^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287389 + ... + 287620.

It is an arithmetic number, because the mean of its divisors is an integer number (10062675).

Almost surely, 2^66701044 is an apocalyptic number.

It is an amenable number.

66701044 is a deficient number, since it is larger than the sum of its proper divisors (54051056).

66701044 is a wasteful number, since it uses less digits than its factorization.

66701044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575042 (or 575040 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 66701044 is about 8167.0707110934. The cubic root of 66701044 is about 405.5498176902.

The spelling of 66701044 in words is "sixty-six million, seven hundred one thousand, forty-four".