1695663581668 has 24 divisors (see below), whose sum is σ = 3391434091584. Its totient is φ = 726690050400.

The previous prime is 1695663581659. The next prime is 1695663581683. The reversal of 1695663581668 is 8661853665961.

It is a junction number, because it is equal to n+sod(n) for n = 1695663581597 and 1695663581606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35278 + ... + 1841893.

It is an arithmetic number, because the mean of its divisors is an integer number (141309753816).

Almost surely, 2^{1695663581668} is an apocalyptic number.

It is an amenable number.

1695663581668 is an abundant number, since it is smaller than the sum of its proper divisors (1695770509916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1695663581668 is a wasteful number, since it uses less digits than its factorization.

1695663581668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909443 (or 1909441 counting only the distinct ones).

The product of its digits is 335923200, while the sum is 70.

The spelling of 1695663581668 in words is "one trillion, six hundred ninety-five billion, six hundred sixty-three million, five hundred eighty-one thousand, six hundred sixty-eight".