699661577911 has 2 divisors, whose sum is σ = 699661577912. Its totient is φ = 699661577910.

The previous prime is 699661577863. The next prime is 699661577917. The reversal of 699661577911 is 119775166996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 699661577911 - 2²⁷ = 699527360183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699661577917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349830788955 + 349830788956.

It is an arithmetic number, because the mean of its divisors is an integer number (349830788956).

Almost surely, 2^699661577911 is an apocalyptic number.

699661577911 is a deficient number, since it is larger than the sum of its proper divisors (1).

699661577911 is an equidigital number, since it uses as much as digits as its factorization.

699661577911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38578680, while the sum is 67.

The spelling of 699661577911 in words is "six hundred ninety-nine billion, six hundred sixty-one million, five hundred seventy-seven thousand, nine hundred eleven".