66063759 has 32 divisors (see below), whose sum is σ = 95023104. Its totient is φ = 40746240.

The previous prime is 66063743. The next prime is 66063773. The reversal of 66063759 is 95736066.

It is not a de Polignac number, because 66063759 - 2⁴ = 66063743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66063759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66063719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251062 + ... + 251324.

It is an arithmetic number, because the mean of its divisors is an integer number (2969472).

Almost surely, 2^66063759 is an apocalyptic number.

66063759 is a deficient number, since it is larger than the sum of its proper divisors (28959345).

66063759 is a wasteful number, since it uses less digits than its factorization.

66063759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 66063759 is about 8127.9615525665. The cubic root of 66063759 is about 404.2540942313.

The spelling of 66063759 in words is "sixty-six million, sixty-three thousand, seven hundred fifty-nine".