140037664069 has 2 divisors, whose sum is σ = 140037664070. Its totient is φ = 140037664068.

The previous prime is 140037664037. The next prime is 140037664073. The reversal of 140037664069 is 960466730041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139106620900 + 931043169 = 372970^2 + 30513^2 .

It is a cyclic number.

It is not a de Polignac number, because 140037664069 - 2⁵ = 140037664037 is a prime.

It is a super-2 number, since 2×140037664069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140037664769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70018832034 + 70018832035.

It is an arithmetic number, because the mean of its divisors is an integer number (70018832035).

Almost surely, 2^140037664069 is an apocalyptic number.

It is an amenable number.

140037664069 is a deficient number, since it is larger than the sum of its proper divisors (1).

140037664069 is an equidigital number, since it uses as much as digits as its factorization.

140037664069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 140037664069 in words is "one hundred forty billion, thirty-seven million, six hundred sixty-four thousand, sixty-nine".