1696696796681 has 2 divisors, whose sum is σ = 1696696796682. Its totient is φ = 1696696796680.

The previous prime is 1696696796633. The next prime is 1696696796699. The reversal of 1696696796681 is 1866976966961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313957838400 + 382738958281 = 1146280^2 + 618659^2 .

It is a cyclic number.

It is not a de Polignac number, because 1696696796681 - 2²⁶ = 1696629687817 is a prime.

It is a super-2 number, since 2×1696696796681² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1696696796596 and 1696696796605.

It is not a weakly prime, because it can be changed into another prime (1696696796611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848348398340 + 848348398341.

It is an arithmetic number, because the mean of its divisors is an integer number (848348398341).

Almost surely, 2^{1696696796681} is an apocalyptic number.

It is an amenable number.

1696696796681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1696696796681 is an equidigital number, since it uses as much as digits as its factorization.

1696696796681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1904684544, while the sum is 80.

The spelling of 1696696796681 in words is "one trillion, six hundred ninety-six billion, six hundred ninety-six million, seven hundred ninety-six thousand, six hundred eighty-one".