651420331133 has 32 divisors (see below), whose sum is σ = 770154739200. Its totient is φ = 543186936000.

The previous prime is 651420331129. The next prime is 651420331141. The reversal of 651420331133 is 331133024156.

It is a cyclic number.

It is not a de Polignac number, because 651420331133 - 2² = 651420331129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651420331133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651420331033) 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, 37132478 + ... + 37150016.

It is an arithmetic number, because the mean of its divisors is an integer number (24067335600).

Almost surely, 2^651420331133 is an apocalyptic number.

It is an amenable number.

651420331133 is a deficient number, since it is larger than the sum of its proper divisors (118734408067).

651420331133 is a wasteful number, since it uses less digits than its factorization.

651420331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19193.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 651420331133 its reverse (331133024156), we get a palindrome (982553355289).

The spelling of 651420331133 in words is "six hundred fifty-one billion, four hundred twenty million, three hundred thirty-one thousand, one hundred thirty-three".