66074230436 has 12 divisors (see below), whose sum is σ = 118450145100. Its totient is φ = 32231331840.

The previous prime is 66074230403. The next prime is 66074230507. The reversal of 66074230436 is 63403247066.

It can be written as a sum of positive squares in 2 ways, for example, as 37764148900 + 28310081536 = 194330^2 + 168256^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 66074230393 and 66074230402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201445661 + ... + 201445988.

It is an arithmetic number, because the mean of its divisors is an integer number (9870845425).

Almost surely, 2^66074230436 is an apocalyptic number.

It is an amenable number.

66074230436 is a deficient number, since it is larger than the sum of its proper divisors (52375914664).

66074230436 is a wasteful number, since it uses less digits than its factorization.

66074230436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402891694 (or 402891692 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 66074230436 in words is "sixty-six billion, seventy-four million, two hundred thirty thousand, four hundred thirty-six".