1000656161111 has 2 divisors, whose sum is σ = 1000656161112. Its totient is φ = 1000656161110.

The previous prime is 1000656161083. The next prime is 1000656161209. The reversal of 1000656161111 is 1111616560001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000656161111 - 2²⁶ = 1000589052247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000656160111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500328080555 + 500328080556.

It is an arithmetic number, because the mean of its divisors is an integer number (500328080556).

Almost surely, 2^{1000656161111} is an apocalyptic number.

1000656161111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000656161111 is an equidigital number, since it uses as much as digits as its factorization.

1000656161111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 1000656161111 in words is "one trillion, six hundred fifty-six million, one hundred sixty-one thousand, one hundred eleven".