66740124 has 24 divisors (see below), whose sum is σ = 169884288. Its totient is φ = 20224240.

The previous prime is 66740111. The next prime is 66740129. The reversal of 66740124 is 42104766.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66740091 and 66740100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252672 + ... + 252935.

It is an arithmetic number, because the mean of its divisors is an integer number (7078512).

Almost surely, 2^66740124 is an apocalyptic number.

It is an amenable number.

66740124 is an abundant number, since it is smaller than the sum of its proper divisors (103144164).

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

66740124 is a wasteful number, since it uses less digits than its factorization.

66740124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505625 (or 505623 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 66740124 is about 8169.4628954418. The cubic root of 66740124 is about 405.6290058191.

The spelling of 66740124 in words is "sixty-six million, seven hundred forty thousand, one hundred twenty-four".