6991465924345 has 32 divisors (see below), whose sum is σ = 10307686809600. Its totient is φ = 4445189896896.

The previous prime is 6991465924343. The next prime is 6991465924363. The reversal of 6991465924345 is 5434295641996.

It is not a de Polignac number, because 6991465924345 - 2¹ = 6991465924343 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6991465924343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111814305 + ... + 111876814.

It is an arithmetic number, because the mean of its divisors is an integer number (322115212800).

Almost surely, 2^{6991465924345} is an apocalyptic number.

It is an amenable number.

6991465924345 is a deficient number, since it is larger than the sum of its proper divisors (3316220885255).

6991465924345 is a wasteful number, since it uses less digits than its factorization.

6991465924345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223691197.

The product of its digits is 251942400, while the sum is 67.

The spelling of 6991465924345 in words is "six trillion, nine hundred ninety-one billion, four hundred sixty-five million, nine hundred twenty-four thousand, three hundred forty-five".