140105166915677 has 2 divisors, whose sum is σ = 140105166915678. Its totient is φ = 140105166915676.

The previous prime is 140105166915653. The next prime is 140105166915731. The reversal of 140105166915677 is 776519661501041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127044322703236 + 13060844212441 = 11271394^2 + 3613979^2 .

It is a cyclic number.

It is not a de Polignac number, because 140105166915677 - 2¹⁰ = 140105166914653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140105166915577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70052583457838 + 70052583457839.

It is an arithmetic number, because the mean of its divisors is an integer number (70052583457839).

Almost surely, 2^{140105166915677} is an apocalyptic number.

It is an amenable number.

140105166915677 is a deficient number, since it is larger than the sum of its proper divisors (1).

140105166915677 is an equidigital number, since it uses as much as digits as its factorization.

140105166915677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 140105166915677 in words is "one hundred forty trillion, one hundred five billion, one hundred sixty-six million, nine hundred fifteen thousand, six hundred seventy-seven".