3197151666697 has 8 divisors (see below), whose sum is σ = 3229081441992. Its totient is φ = 3165227280000.

The previous prime is 3197151666659. The next prime is 3197151666719. The reversal of 3197151666697 is 7966661517913.

It can be written as a sum of positive squares in 4 ways, for example, as 2117420778496 + 1079730888201 = 1455136^2 + 1039101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3197151666697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3197151666607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149298 + ... + 2533099.

It is an arithmetic number, because the mean of its divisors is an integer number (403635180249).

Almost surely, 2^{3197151666697} is an apocalyptic number.

It is an amenable number.

3197151666697 is a deficient number, since it is larger than the sum of its proper divisors (31929775295).

3197151666697 is a wasteful number, since it uses less digits than its factorization.

3197151666697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694299.

The product of its digits is 77157360, while the sum is 67.

The spelling of 3197151666697 in words is "three trillion, one hundred ninety-seven billion, one hundred fifty-one million, six hundred sixty-six thousand, six hundred ninety-seven".