66150833 has 6 divisors (see below), whose sum is σ = 76951026. Its totient is φ = 56700672.

The previous prime is 66150809. The next prime is 66150839. The reversal of 66150833 is 33805166.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 21086464 = 6713^2 + 4592^2 .

It is not a de Polignac number, because 66150833 - 2⁸ = 66150577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66150833.

It is not an unprimeable number, because it can be changed into a prime (66150839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674960 + ... + 675057.

It is an arithmetic number, because the mean of its divisors is an integer number (12825171).

Almost surely, 2^66150833 is an apocalyptic number.

It is an amenable number.

66150833 is a deficient number, since it is larger than the sum of its proper divisors (10800193).

66150833 is a wasteful number, since it uses less digits than its factorization.

66150833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350031 (or 1350024 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 66150833 is about 8133.3162363208. The cubic root of 66150833 is about 404.4316225663.

Adding to 66150833 its reverse (33805166), we get a palindrome (99955999).

The spelling of 66150833 in words is "sixty-six million, one hundred fifty thousand, eight hundred thirty-three".