633420805041 has 12 divisors (see below), whose sum is σ = 915062461300. Its totient is φ = 422224552800.

The previous prime is 633420805037. The next prime is 633420805099. The reversal of 633420805041 is 140508024336.

633420805041 is a `hidden beast` number, since 6 + 33 + 42 + 0 + 80 + 504 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 584110161441 + 49310643600 = 764271^2 + 222060^2 .

It is not a de Polignac number, because 633420805041 - 2² = 633420805037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 633420804987 and 633420805005.

It is not an unprimeable number, because it can be changed into a prime (633420805741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4593610 + ... + 4729491.

Almost surely, 2^633420805041 is an apocalyptic number.

It is an amenable number.

633420805041 is a deficient number, since it is larger than the sum of its proper divisors (281641656259).

633420805041 is a wasteful number, since it uses less digits than its factorization.

633420805041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330656 (or 9330653 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 633420805041 its reverse (140508024336), we get a palindrome (773928829377).

The spelling of 633420805041 in words is "six hundred thirty-three billion, four hundred twenty million, eight hundred five thousand, forty-one".