696610811412121 has 2 divisors, whose sum is σ = 696610811412122. Its totient is φ = 696610811412120.

The previous prime is 696610811412107. The next prime is 696610811412137. The reversal of 696610811412121 is 121214118016696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646256729696400 + 50354081715721 = 25421580^2 + 7096061^2 .

It is a cyclic number.

It is not a de Polignac number, because 696610811412121 - 2¹³ = 696610811403929 is a prime.

It is not a weakly prime, because it can be changed into another prime (696610811412221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348305405706060 + 348305405706061.

It is an arithmetic number, because the mean of its divisors is an integer number (348305405706061).

Almost surely, 2^{696610811412121} is an apocalyptic number.

It is an amenable number.

696610811412121 is a deficient number, since it is larger than the sum of its proper divisors (1).

696610811412121 is an equidigital number, since it uses as much as digits as its factorization.

696610811412121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 49.

The spelling of 696610811412121 in words is "six hundred ninety-six trillion, six hundred ten billion, eight hundred eleven million, four hundred twelve thousand, one hundred twenty-one".