66014740 has 96 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 21381120.

The previous prime is 66014677. The next prime is 66014777. The reversal of 66014740 is 4741066.

It is a junction number, because it is equal to n+sod(n) for n = 66014699 and 66014708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70596 + ... + 71524.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^66014740 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 66014740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84369600).

66014740 is an abundant number, since it is smaller than the sum of its proper divisors (102724460).

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

66014740 is a wasteful number, since it uses less digits than its factorization.

66014740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 983 counting only the distinct ones).

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

The square root of 66014740 is about 8124.9455382790. The cubic root of 66014740 is about 404.1540846097.

It can be divided in two parts, 660 and 14740, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 66014740 in words is "sixty-six million, fourteen thousand, seven hundred forty".