1665196696701 has 12 divisors (see below), whose sum is σ = 2405319647328. Its totient is φ = 1110114732744.

The previous prime is 1665196696693. The next prime is 1665196696741. The reversal of 1665196696701 is 1076966915661.

It is not a de Polignac number, because 1665196696701 - 2³ = 1665196696693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665196696741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706635 + ... + 1956968.

It is an arithmetic number, because the mean of its divisors is an integer number (200443303944).

Almost surely, 2^{1665196696701} is an apocalyptic number.

It is an amenable number.

1665196696701 is a deficient number, since it is larger than the sum of its proper divisors (740122950627).

1665196696701 is a wasteful number, since it uses less digits than its factorization.

1665196696701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733072 (or 2733069 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 1665196696701 in words is "one trillion, six hundred sixty-five billion, one hundred ninety-six million, six hundred ninety-six thousand, seven hundred one".