10650136681 has 2 divisors, whose sum is σ = 10650136682. Its totient is φ = 10650136680.

The previous prime is 10650136657. The next prime is 10650136733. The reversal of 10650136681 is 18663105601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9409970025 + 1240166656 = 97005^2 + 35216^2 .

It is a cyclic number.

It is not a de Polignac number, because 10650136681 - 2¹⁵ = 10650103913 is a prime.

It is a super-2 number, since 2×10650136681² (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 10650136681.

It is not a weakly prime, because it can be changed into another prime (10650106681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325068340 + 5325068341.

It is an arithmetic number, because the mean of its divisors is an integer number (5325068341).

Almost surely, 2^10650136681 is an apocalyptic number.

It is an amenable number.

10650136681 is a deficient number, since it is larger than the sum of its proper divisors (1).

10650136681 is an equidigital number, since it uses as much as digits as its factorization.

10650136681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 10650136681 in words is "ten billion, six hundred fifty million, one hundred thirty-six thousand, six hundred eighty-one".