10640951999 has 2 divisors, whose sum is σ = 10640952000. Its totient is φ = 10640951998.

The previous prime is 10640951977. The next prime is 10640952013. The reversal of 10640951999 is 99915904601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10640951999 - 2⁸ = 10640951743 is a prime.

It is a super-2 number, since 2×10640951999² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10640951999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10640951599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320475999 + 5320476000.

It is an arithmetic number, because the mean of its divisors is an integer number (5320476000).

Almost surely, 2^10640951999 is an apocalyptic number.

10640951999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640951999 is an equidigital number, since it uses as much as digits as its factorization.

10640951999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 10640951999 in words is "ten billion, six hundred forty million, nine hundred fifty-one thousand, nine hundred ninety-nine".