140956664591 has 2 divisors, whose sum is σ = 140956664592. Its totient is φ = 140956664590.

The previous prime is 140956664557. The next prime is 140956664593. The reversal of 140956664591 is 195466659041.

It is a strong prime.

It is an emirp because it is prime and its reverse (195466659041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140956664591 - 2²² = 140952470287 is a prime.

Together with 140956664593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140956664593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70478332295 + 70478332296.

It is an arithmetic number, because the mean of its divisors is an integer number (70478332296).

Almost surely, 2^140956664591 is an apocalyptic number.

140956664591 is a deficient number, since it is larger than the sum of its proper divisors (1).

140956664591 is an equidigital number, since it uses as much as digits as its factorization.

140956664591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 140956664591 in words is "one hundred forty billion, nine hundred fifty-six million, six hundred sixty-four thousand, five hundred ninety-one".