10640744199 has 8 divisors (see below), whose sum is σ = 15764065520. Its totient is φ = 7093829448.

The previous prime is 10640744113. The next prime is 10640744201. The reversal of 10640744199 is 99144704601.

10640744199 is a `hidden beast` number, since 10 + 6 + 407 + 44 + 199 = 666.

It is not a de Polignac number, because 10640744199 - 2¹⁶ = 10640678663 is a prime.

It is a super-2 number, since 2×10640744199² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10640744999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197050792 + ... + 197050845.

It is an arithmetic number, because the mean of its divisors is an integer number (1970508190).

Almost surely, 2^10640744199 is an apocalyptic number.

10640744199 is a deficient number, since it is larger than the sum of its proper divisors (5123321321).

10640744199 is an equidigital number, since it uses as much as digits as its factorization.

10640744199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394101646 (or 394101640 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 10640744199 in words is "ten billion, six hundred forty million, seven hundred forty-four thousand, one hundred ninety-nine".