651440011 has 2 divisors, whose sum is σ = 651440012. Its totient is φ = 651440010.

The previous prime is 651439993. The next prime is 651440033. The reversal of 651440011 is 110044156.

It is an a-pointer prime, because the next prime (651440033) can be obtained adding 651440011 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651440011 - 2¹³ = 651431819 is a prime.

It is not a weakly prime, because it can be changed into another prime (651140011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325720005 + 325720006.

It is an arithmetic number, because the mean of its divisors is an integer number (325720006).

Almost surely, 2^651440011 is an apocalyptic number.

651440011 is a deficient number, since it is larger than the sum of its proper divisors (1).

651440011 is an equidigital number, since it uses as much as digits as its factorization.

651440011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 651440011 is about 25523.3228831984. The cubic root of 651440011 is about 866.8783226809.

Adding to 651440011 its reverse (110044156), we get a palindrome (761484167).

The spelling of 651440011 in words is "six hundred fifty-one million, four hundred forty thousand, eleven".