66072450633 has 16 divisors (see below), whose sum is σ = 103402961280. Its totient is φ = 36735261696.

The previous prime is 66072450607. The next prime is 66072450637. The reversal of 66072450633 is 33605427066.

66072450633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66072450633 - 2¹⁰ = 66072449609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66072450637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42516888 + ... + 42518441.

It is an arithmetic number, because the mean of its divisors is an integer number (6462685080).

Almost surely, 2^66072450633 is an apocalyptic number.

It is an amenable number.

66072450633 is a deficient number, since it is larger than the sum of its proper divisors (37330510647).

66072450633 is a wasteful number, since it uses less digits than its factorization.

66072450633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85035376.

The product of its (nonzero) digits is 544320, while the sum is 42.

Adding to 66072450633 its reverse (33605427066), we get a palindrome (99677877699).

The spelling of 66072450633 in words is "sixty-six billion, seventy-two million, four hundred fifty thousand, six hundred thirty-three".